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Autumn Equinox Is in Two Weeks: What It Is and What It Looks Like

Experience an equinox sunrise later this month, which marks the arrival of fall in the Northern Hemisphere.

Even if the leaves haven’t yet begun turning where you live, Labor Day is over, school is back in session and fall is almost here. The official arrival of the season is the autumnal equinox, which occurs in the Northern Hemisphere this month. 

After a hot summer, the September equinox marks a welcome shift in the seasons for many folks. But what exactly is an equinox? It’s all about Earth and its relationship with the sun. Here’s how to understand, visualize and celebrate the autumnal equinox.


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When is the autumn equinox?

This year, the autumnal equinox in the Northern Hemisphere falls on Monday, Sept. 22. If you want to be extra specific and mark it on your calendar, mark it for 11:19 a.m. PT.

Dates can shift slightly for equinoxes depending on the year, but it’s always around this time in September. The next vernal equinox in the Northern Hemisphere takes place on March 20, 2026, and will mark the start of spring.

What is the autumn equinox?

The meaning of equinox is right there in the name: a combination of the Latin words for equal and night. 

«There are only two times of the year when the Earth’s axis is tilted neither toward nor away from the sun, resulting in a ‘nearly’ equal amount of daylight and darkness at all latitudes,» the National Weather Service said in an explainer about the seasons. 

The Earth spins on an axis (imagine a line running from pole to pole) and the planet sports a jaunty 23.5-degree tilt. The tilt is what gives us seasons. As the Earth orbits the sun, the tilt means some areas of the planet get more direct sunlight than others. That’s how it can be summer in the Northern Hemisphere (tilted toward the sun) and winter in the Southern Hemisphere (tilted away from the sun) at the same time. During the equinox, the sun shines straight at the equator and gives equal love to the two hemispheres.

Other planets that are also tilted on their axes of rotation also experience equinoxes. The time scales can be very different, however. An equinox on Saturn only comes around about every 15 Earth years. That means each season lasts for over seven years on Saturn. It’s even wilder on Neptune, which has seasons that last decades. We can be grateful for the relatively short seasons on our planet.

What does an equinox look like?

Wherever you are on Earth on the day of the equinox (and whether it’s a spring or fall equinox, depending on which hemisphere you live in), the sun will rise as close to east and set as close to west as possible, making it a foolproof compass. Go outside and watch the sunset and sunrise, and make a note of the landmarks in front of the sun. That way, you’ll always know what exactly is west and east.

The two annual equinoxes also feature the fastest sunrise and sunset of the year, with the sun taking just a few seconds to appear and disappear. That’s because this is the steepest angle at which the sun rises and sets during the year.

How is an equinox different from a solstice?

As with equinoxes, solstices are associated with Earth’s tilt, but instead of daylight and nighttime being even, the days and nights are at their extremes. The winter solstice is the shortest day of the year, while the summer solstice is the longest. This year, the winter solstice for the Northern Hemisphere falls on Sunday, Dec. 21.

What does the equinox look like from space?

Earth-watching satellites up in orbit have a unique view of the equinox. A NASA Earth Observatory video shows Earth from space and how the positioning of the sun’s light shifts with the changing of the seasons. It’s a great way to visualize what’s happening during our planet’s orbit around the sun. 

Celebrating the equinox

Equinoxes aren’t like eclipses or meteors. There isn’t a big wow moment when you see something spectacular. The fall equinox this year will look like any other day, but it’s a handy way to mark the changing of the astronomical seasons. You can go around and declare, «It’s officially the first day of autumn!» How you celebrate is up to you. Here’s a suggestion: Put on your favorite sweater, go for a scenic foliage drive and sip a pumpkin spice latte to welcome fall in style.

Technologies

Formula E’s New Electric Racing Car Is Faster Than a Formula 1 Car. What We Know So Far

The jaw-droppingly quick new Gen4 car will be raced in the 2026-27 season of Formula E, where there are hopes it will attract more fans to the motorsport.

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Technologies

I Used the Oppo Find X9 Pro’s Bizarre-Looking Hasselblad Lens and Here’s Everything It Can Do

The Hasselblad teleconverter lens adds a 10x optical zoom to the Oppo Find X9 Pro’s 200-megapixel camera. It’s expensive but the results are fantastic.

The Oppo Find X9 Pro has a range of upgrades, including a new 200-megapixel telephoto camera with 3x optical zoom, which boasts several nifty zoom features to help you take a great photo no matter how far away you are from your subject.

For example, it delivers excellent shots at 6x by cropping into the sensor for 50-megapixel photos. Oppo says that it can deliver «lossless zoom» up to 13.2x using computational photography — that’s close to the max digital zoom on phones from a few years ago. And if that’s not enough for you, the Find X9 Pro also supports an external Hasselblad telephoto lens accessory, which further zooms into distant subjects.

Out of these three, the detachable telephoto lens is the most wild. When attached, the Hasselblad lens sticks out several inches from the back of the phone. It somewhat resembles a mini-telescope.

Oppo isn’t the first to make such an accessory; both Vivo and Xiaomi have done it before. However, Oppo’s take is different than the rest. While others offer a camera grip with a shutter button, Oppo’s Hasselblad Teleconverter Kit relies on the phone’s Quick Control hardware button or the on-screen shutter button to shoot the photos.

I’ve been using it a lot recently and here’s what it can do. I should note that the Oppo Find X9 Pro isn’t available in the US.

Using the Hasselblad Teleconverter Kit is kind of a hassle

The Hasselblad Teleconverter Kit comes with three pieces: a snap-on camera module attachment, the telephoto lens itself and a brace that can screw into a tripod for stability.

To use it, you also need to have the official Magnetic Photographer Case, which is purpose-built to support the slide-on attachment. You can then add the lens with a twist, which clicks securely into place over the 200-megapixel telephoto camera.

The external lens accessory is heavy, making the phone unbalanced and unwieldy. I got used to it, but it took a day to figure out how to hold the phone and lens combo most effectively. However, I sorely miss that there’s no camera grip to provide a secure hold for the phone when the lens is mounted. If I move my hand for a more comfortable hold or to tap the screen for long zoom shots, my framing is significantly altered. If I were to change one thing about this teleconverter kit, I’d add a camera grip to make this setup more comfortable to use.

You can use a tripod to brace the lens, which helps stabilize your shots in the viewfinder; however, this is counterproductive to the idea of using a phone to take photos in the first place. I don’t want to carry a tripod — at that point, I might as well just use a dedicated camera and telephoto lens. After all, the whole purpose of having a portable tele lens is to minimize bulk.

And yet, I love using it

The first time you add the Hasselblad lens and open the Camera app, you might be surprised to see the viewfinder upside down. To counter this, you need to go to the dedicated Hasselblad Teleconverter mode under the More menu.

Besides flipping the viewfinder the correct way, it gives you 10x, 20x and 40x zoom options. You can always use the slider to adjust the magnification between 10x and 200x. I used it for a day in Barcelona and loved the natural depth it added to human subjects. I was also surprised by some lowlight results. 

Here are few of my favorite photos that I shot on the Oppo Find X9 Pro using the Hasselblad Teleconverter Kit:

I saw a person skateboarding after setting up my camera and kept tapping the shutter button in hopes of getting an action shot. I love how this came out because there’s no motion blur on the person or his skateboard. These kinds of shots require a fast shutter speed to freeze the moment, and the Oppo Find X9 Pro was able to do so at 10x zoom using an external lens. The colors are accurate, the contrast is nice and there’s a good bokeh despite having a moving subject.

When setting up this shot, I tapped on the yacht to move the focus point from the person sitting on the seaside. At 20x zoom, it captured a nice-looking shot but if you look closely, the details are missing from the faces of the people on the yacht. It’s because the camera moved slightly when I was adjusting the focus and trying to capture the photo. Overall, I still prefer the Hasselblad lens and Oppo combination for accurately capturing the colors of a sunset.

At 40x zoom, the Hasselblad teleconverter lens captures softer images and the details go for a toss. But its processing still retains the mood and feel of the frame which is just as important as getting sharp details. It gets the colors right and there’s a decent bokeh. It can also track faces to determine the subject, even at 50x zoom and, like in the above shot, you get decent clarity.

If you have a still subject, the external Hasselblad lens adds a DSLR-like shallow depth of field. It was even able to capture the woman’s hair strands in a windy environment. I love this photo because no portrait mode was used and that bokeh is the lens’ natural bokeh just like you’d get from a DSLR or mirrorless camera. It offers a similar shallow depth of field at 20x for still subjects.

For this photo, I tapped the wall for focus, which also adjusted the exposure and white balance automatically. Too many similar shots from other phones suffer from overprocessing, but not this one. I’m impressed by how it was able to expose for the light, without blowing out the highlights to white. The people were properly exposed without me needing to tap on either for focus and exposure. It also got the mood right in the process.

However, using the lens in low-light settings, like above, adds a lot of noise reduction and tends to give photos a soft, blurry watercolor look. The above shot was also captured at 10x and there’s light over the subject’s face, but the overall look is soft with fewer details. That said, it gives the photo a unique look, which I don’t dislike.

This is also a tap-lock-on-the-subject-and-shoot image, where I [the subject] was moving and the system was able to track my face to focus better. I love the photo’s contrasty look. In anything less than direct sunlight, the Hasselblad lens softens the subject, but the photos still come out looking great.

I like having the ability to expand my phone’s zooming capabilities for both photos and videos. However, the Hasselblad Lens Converter kit remains more of a novelty than something you’d use every day, mostly thanks to its price. While it’s fascinating how close you can get to distant subjects without losing much image quality, at 499 euros (roughly $575), it’s one of the most expensive phone accessories you can buy.

At that price, I’d expect it to function better with my phone. For instance, I’d like the camera software to be able to detect that I’ve attached an external lens, so it would open in the Hasselblad Teleconverter mode by default — rather than giving me a black viewfinder.

The Hasselblad Teleconverter kit is one of the most expensive phone accessories on the market. But if you can afford it, the lens adds a lovely natural bokeh to photos while retaining a scene’s natural colors. It also outputs excellent night shots. It might not be the best value but I can’t seem to put it down.

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NASA’s Escapade Mission May Finally Reveal How the Martian Atmosphere Works

NASA, Blue Origin and UC Berkeley combined efforts for NASA’s lowest-cost mission to Mars.

Sending anything to Mars is a much more difficult process than it seems. In the 1960s, the Soviet Union tried (and failed) in its first nine consecutive attempts, and the US was only able to succeed in quick flybys. The losing streak came to an end in 1971 with the success of the Mariner 9, the first spacecraft to orbit another planet. 

More than 50 years later, Mars is still tough to get to, with only seven functional orbiters and two on-surface rovers still operating, most of which are run by NASA. 

On Sunday, NASA’s Escapade, a collaborative effort among the space agency, UC Berkeley and Jeff Bezos’ Blue Origin, will launch and attempt to add two more orbiters to the elusive club of successful missions to Mars. Liftoff is scheduled for 2:45 p.m. ET.

The mission is simple on paper: Blue Origin’s New Glenn rocket will launch two Escapade orbiters into space on Nov. 9, depending on the weather and other factors.

Once there, the orbiters — nicknamed Blue and Gold after UC Berkeley’s school colors — will separate. This is where things get a little complicated. Blue and Gold will hang out at the L2 Earth-Sun Lagrange point, a part of space behind the Earth when viewed from the sun, where the orbiters can quite literally hang out without getting lost in space. They’ll stay there for a year before doing a quick flyby of Earth and departing for Mars. The twin orbiters are expected to arrive at the Red Planet by November 2027. 


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Space agencies launch missions all the time but few of them have the subtext of Escapade, which has not one but three underlying storylines to pay attention to. 

New Glenn’s official debut

NASA has tapped Blue Origin’s large New Glenn rocket for the launch. New Glenn is the proverbial new kid on the block, and the Escapade mission will be the company’s first official mission into space. The rocket’s role will be to launch Escapade into orbit and then return to Earth.

Blue Origin sent New Glenn into orbit for the first time in January 2025. That mission, dubbed NG-1 by Blue Origin, showed that the rocket could launch and make it to space while demonstrating the company’s Blue Ring orbital transfer vehicle. Things didn’t exactly go as planned, however. Upon reentry, New Glenn’s first stage was unable to stick its landing, missing its target and plunging into the Atlantic Ocean, prompting an FAA investigation

For the Escapade mission, all eyes will be on whether Blue Origin will do better this time in the landing phase. Not only is this the first NASA mission for the space company, owned by the CEO of online retail giant Amazon, but it will also make its second attempt to land New Glenn’s first-stage rockets without incident. 

Should the company succeed, Blue Origin will join Elon Musk’s SpaceX as the only commercial vendors with reusable space launch vehicles. This could help reduce the cost and increase the frequency of space launches. 

The 13 lives of Escapade

One of the challenges of the Escapade mission is its budget. Missions to Mars are usually expensive. The Mars Exploration Rover mission started in 2003 and launched a year later cost a hair over $1 billion, with $744 million of it going to vehicle design and launch. Even less expensive initiatives, like the failed 1999 Mars Polar Lander, still cost well north of $100 million. 

Escapade didn’t have that budget. It’s part of NASA’s Small Innovative Missions for Planetary Exploration program. Its budget was less than $80 million, and to build the two orbiters, UC Berkeley and Rocket Lab were allocated $55 million of that total. 

«Building two interplanetary spacecraft for $55 million was never going to be simple,» Dr. Robert Lillis, associate director for Planetary Science at UC Berkeley and the Escapade mission, tells CNET. «They say ‘space is hard’ and they’re right. For us and our spacecraft partners at Rocket Lab, it was tough to build robust, well-instrumented interplanetary probes on a low budget, so challenges were many.»

Researchers at Berkeley began work on Blue and Gold in 2016, and over the years, they dealt with myriad roadblocks, including budgetary concerns, the COVID-19 pandemic, supply issues from suppliers and even personal illnesses. 

«I’ll put it this way, we have a slide deck called ‘The Nine Lives of Escapade’ and I think we’re up to 13 now,» Lillis says. «I could write a book on all the things that could’ve doomed the mission.»

The cost of admission

In 2013, the Indian Space Research Organization launched its Mars Orbital Mission, a successful attempt to put a satellite on the Red Planet. The total cost of the mission was $74 million, which undercut all other missions to Mars by a fairly significant margin when adjusting for inflation. 

Escapade’s budget is roughly the same, with NASA paying Blue Origin $20 million for use of the New Glenn rocket in addition to the $55 million given to UC Berkeley and Rocket Lab for the creation of the two orbiters. Should the mission be a success, it’ll be NASA’s first low-cost mission to go as far as Mars, and the second such mission to succeed.

Reducing the cost of admission is an important milestone for NASA. It would open up more opportunities for future Mars missions, which could help pave the way for human exploration someday, although there are many other milestones that need to be hit before that can happen.

UC Berkeley and Rocket Lab successfully developed two orbiters that will spend their lifetimes scanning Mars’ magnetic field to gain a deeper understanding of its history, all while operating within a budget that may make future missions to Mars more frequent and affordable. 

The Martian magnetosphere

Despite being one of Earth’s closest neighbors, there are still a lot of question marks surrounding Mars. It’s pretty well established that the planet had water at some point. Over the span of its history, the Martian magnetosphere started getting stripped away by solar winds, making it nearly impossible for water to continue to exist. 

Science has a limited set of data that comes from single orbiters over the span of decades and Escapade hopes to fix that by having two orbiters that follow each other so that researchers can get more consistent measurements of the Martian magnetosphere. As Lillis says, the magnetosphere on Mars changes by the minute, so waiting for a single orbiter to circle back around leaves a lot of those changes unmeasured. 

«With a single orbiter, we could measure conditions in the upstream solar wind, but then have to wait a couple of hours before the spacecraft orbit brought us into the upper atmosphere to measure the rates of atmospheric escape,» Lillis said. «That’s too long: We know the space weather propagates through the system in only one or two minutes.»

The ultimate purpose of the mission is to measure and observe how solar weather interacts with the Martian magnetosphere. Per Lillis, solar winds have been eroding the magnetosphere on Mars, similar to how water erodes rock in a river. Escapade will help science determine how fast and how much of the magnetosphere has eroded under the sun’s constant onslaught. 

Because space weather can be so unpredictable and the existing data is spread out too far in terms of time, researchers aren’t quite sure what they’re going to find when they get there. Berkeley has simulation models that can predict things over the span of hours. Lillis says that the data from Escapade’s two-orbiter setup will help fill in a lot of those gaps.

«With Escapade, we can measure cause and effect at the same time, i.e., the solar wind and upper atmosphere simultaneously,» says Lillis. «To start to understand this highly dynamic system, we need that cause and effect perspective.» 

You can watch the livestream of the Escapade mission launch on Sunday, at Blue Origin’s website.

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