Technologies

2022 Geminid Meteor Shower Ramps Up This Weekend as Peak Approaches

Bright cosmic fireballs and even «Earth grazers» are on the calendar for the next week or so.

The Geminid meteor shower, typically the strongest meteor shower of the year, is starting to intensify ahead of its peak next week, and it’s already producing shooting stars and fireballs.

The Geminids have technically been active for a few weeks, but the shower will begin to increase significantly this weekend when it may become possible see around a dozen or more meteors per hour under ideal conditions, according to the American Meteor Society.

It’s a big windup to a far bigger crescendo, when the Geminids can deliver more than a hundred meteors per hour on peak nights. This is also the rare shower that doesn’t require you to wake up at atrocious hours before sunrise for the best viewing experience.

In 2022, the shower is active from Nov. 19 until Dec. 24, peaking on the evening of Dec. 13 into the following morning. The moon will be more than two-thirds full that night, which is a bit of a bummer but certainly not enough to discourage skywatchers from heading outside for a look. If you’re in the Southern Hemisphere you’ll do better to go looking for Geminids later in the night, but fortunately it’s summer for you, requiring fewer warm layers than many watchers above the equator will want to bring.

The Geminids are the rare meteor shower that don’t seem to be traced to an active comet that makes intermittent visits to the inner solar system spaced out by several years or longer. Instead, the source seems to be the asteroid 3200 Phaethon, which astronomers think may be an extinct comet or new kind of object called a «rock comet,» according to NASA.

Whatever it is, the pieces of debris and detritus that have broken away from Phaethon over the years form dusty clouds that are more dense than what most comets leave behind. This explains why the Geminids are consistently one of the stronger annual showers. Each December we drift through the most dense part of this cloud and hundreds or thousands of bits roughly the size of a pebble burn up as they collide with our upper atmosphere.

For the best chance of catching as many Geminids as possible, the most important thing to do is to find an observing spot untainted by light pollution that has a broad view of the sky, which is hopefully cloudless. While it’s best to mark the peak night on your calendar, it’s possible to catch a few meteors an hour right now, especially as other showers like the Leonids and Taurids are still active.

If the moon is up, you can try to orient yourself so it’s at your back as much as possible.

Once you’ve got the ideal spot, lay back, relax and give your eyes time to adjust. Then just watch. Plan for at least an hour for the whole experience as there are always lulls in activity. On the peak night, if you’re lucky with ideal conditions, you might see up to 150 meteors in an hour.

Your best chance to see that many is probably around 2 a.m. when the radiant that the Geminids appear to radiate outward from (in the direction of the constellation Gemini, hence the name) is highest in the sky. That said, the radiant is above the horizon earlier in the evening as mentioned earlier, and these more friendly hours are also the best time to see a bright «earth-grazer,» which is nickname for a brilliant fireball that appears to flame out spectacularly just above the horizon.

However you do it, be sure to dress appropriately and bring refreshments so you aren’t tempted to head back inside and ruin your night vision. Happy spotting!

Technologies

iOS 17 Cheat Sheet: Your Questions on the iPhone Update Answered

Here’s what you need to know about new features and upcoming updates for your iPhone.

Apple’s iOS 17 was released in September, shortly after the company held its Wonderlust event, where the tech giant announced the new iPhone 15 lineup, the Apple Watch Series 9 and the Apple Watch Ultra 2. We put together this cheat sheet to help you learn about and use the new features in iOS 17. It’ll also help you keep track of the subsequent iOS 17 updates.

iOS 17 updates

Using iOS 17

Getting started with iOS 17

Make sure to check back periodically for more iOS 17 tips and how to use new features as Apple releases more updates.

17 Hidden iOS 17 Features You Should Definitely Know About

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See all photos

Technologies

Get Ready for a Striking Aurora That Could Also Disrupt Radio Communications

Don’t expect the storm to cause a lingering problem, though.

A geomagnetic storm is threatening radio communications Monday night, but that doesn’t mean you should be concerned. In fact, it may be an opportunity to see a colorful aurora in the night sky.

The National Oceanic and Atmospheric Administration has issued a geomagnetic storm watch after witnessing a coronal mass ejection from the sun on Saturday. The watch, which was issued over the weekend and will expire after Monday, said the onset of the storm passing over Earth on Sunday night represented a «moderate» threat to communications. As the storm continues to pass through, it could deliver a «strong» threat on Monday night that could cause radio communications to be temporarily disrupted during the worst of it.

Even so, NOAA said, «the general public should not be concerned.»

A coronal mass ejection occurs when magnetic field and plasma mass are violently expelled from the sun’s corona, or the outermost portion of the sun’s atmosphere. In the vast majority of cases, the ejection occurs with no real threat to Earth. However, in the event the ejection happens in the planet’s direction, a geomagnetic storm occurs, and the Earth’s magnetic field is temporarily affected.

In most cases, geomagnetic storms cause little to no disruption on Earth, with radio communications and satellites affected most often. In extreme cases, a geomagnetic storm can cause significant and potentially life-threatening power outages — a prospect that, luckily, the planet hasn’t faced.

Switching poles

Every 11 years, the sun’s magnetic poles switch, with the north pole and south pole swapping positions. During those cycles, the sun’s activity ramps up as it gets closer to pole-switching time. The height of its activity is called solar maximum, and scientists believe we either may be entering the solar maximum or may be already in it.

During periods of heightened solar activity, sunspots increase on the sun and there’s an increase in coronal mass ejections, among other phenomena. According to NOAA, solar maximum could extend into October of this year before the sun’s activity calms and it works towards its less-active phase, solar minimum.

Even when geomagnetic storms hit Earth and disrupt communications, the effects are usually short-lived. Those most affected, including power grid operators and pilots and air traffic controllers communicating over long distances, have fail-safe technologies and backup communications to ensure operational continuity.

But geomagnetic storms aren’t only about radios. In most cases, they also present unique opportunities to see auroras in the night sky. When the storms hit, the plasma they carry creates a jaw-dropping aurora, illuminating the night sky with brilliant colors. Those auroras can be especially pronounced during the most intense phases of the storm, making for nice stargazing.

If you’re interested in seeing the aurora, you’ll need to be ready. The NOAA said the «brunt of the storm has passed» and even if it lingers into Tuesday, there won’t be much to see after Monday night.

Technologies

Last Total Solar Eclipse for 20 Years Is Coming: How to See and Photograph It

It’s your last chance until 2044.

Get your eclipse glasses ready, Skygazers: the Great American Eclipse is on its way. On April 8, there’ll be a total eclipse over North America, the last one until 2044.

A total solar eclipse happens when the moon passes between the Earth and the sun, blocking the sun and turning an otherwise sunny day to darkness for a short period of time. Depending on the angle at which you’re viewing the eclipse, you may see the sun completely shrouded by the moon (called totality) or some variation of it. The more off-angle you are and the further you are from the path of the eclipse, the less likely you’ll be to see the totality.

The 2024 total solar eclipse will happen on Monday, April 8. The Great American Eclipse will reach the Mexican Pacific coast at 11:07 a.m. PT (2:07 p.m. ET), and then traverse the US in a northeasterly direction from Texas to Maine, and on into easternmost Canada. If you want a good look at it, but don’t live in the path of totality, you shouldn’t wait much longer to book accommodation and travel to a spot on the path.

Or how about booking a seat in the sky? Delta Airlines made headlines for offering a flight that allows you to see the entire path of totality. Its first eclipse flight, from Austin, Texas, to Detroit sold out quickly. But as of Monday, Delta has added a second flight from Dallas to Detroit, which also covers the path of totality. The airline also has five flights that will offer prime eclipse viewing.

Not everyone can get on one of those elusive eclipse-viewing flights. Here’s a look at other options to nab a chance to see this rare sight and what to know about it.

Total solar eclipse path

The eclipse will cross over the Pacific coast of Mexico and head northeast over mainland Mexico. The eclipse will then make its way over San Antonio at approximately 2:30 p.m. ET on April 8 and move through Texas, over the southeastern part of Oklahoma and northern Arkansas by 2:50 p.m. ET.

By 3 p.m. ET, the eclipse will be over southern Illinois, and just 5 minutes later, will be traveling over Indianapolis. Folks in northwestern Ohio will be treated to the eclipse by 3:15 p.m. ET, and it will then travel over Lake Erie and Buffalo, New York, by 3:20 p.m. ET. Over the next 10 minutes, the eclipse will be seen over northern New York state, then over Vermont. By 3:35 p.m. ET, the eclipse will work its way into Canada and off the Eastern coast of North America.

Best places to watch the Great American Eclipse

When evaluating the best places to watch this year’s total eclipse, you’ll first want to determine where you’ll have the best angle to see the totality. The farther off-angle you are — in other words, the farther north or south of the eclipse’s path — the less of an impact you can expect.

Therefore, if you want to have the best chance of experiencing the eclipse, you’ll want to be in its path. As of this writing, most of the cities in the eclipse’s path have some hotel availability, but recent reports have suggested that rooms are booking up. And as more rooms are booked, prices are going up.

So if you want to be in the eclipse’s path, and need a hotel to do it, move fast. And Delta’s eclipse-viewing flight from Dallas to Detroit has just four seats left at the time of publication.

Eclipse eye safety and photography

As with any solar eclipse, it’s critical you keep eye safety in mind.

During the eclipse, and especially during the periods before and after totality, don’t look directly at the sun without special eye protection. Also, be sure not to look at the sun through a camera (including the camera on your phone), binoculars, a telescope or any other viewing device. This could cause serious eye injury. Sunglasses aren’t enough to protect your eyes from damage.

If you want to view the eclipse, you’ll instead need solar viewing glasses that comply with the ISO 12312-2 safety standard. Anything that doesn’t meet that standard or greater won’t be dark enough to protect your eyes. Want to get them for free? If you’ve got a Warby Parker eyeglasses store nearby, the company is giving away free, ISO-certified solar eclipse glasses at all of its stores from April 1 until the eclipse, while supplies last.

If you don’t have eclipse viewing glasses handy, you can instead use indirect methods for viewing the eclipse, like a pinhole projector.

Read more: A Photographer’s Adventure With the Eclipse

In the event you want to take pictures of the eclipse, attach a certified solar filter to your camera. Doing so will protect your eyes and allow you to take photos while you view the eclipse through your lens.

There’s also a new app to help you both protect your eyes and take better photos of the eclipse on your phone. Solar Snap, designed by a former Hubble Space Telescope astronomer, comes with a Solar Snap camera filter that attaches to the back of an iPhone or Android phone, along with solar eclipse glasses for protecting your eyesight during the event. After you attach the filter to your phone, you can use the free Solar Snap Eclipse app to zoom in on the eclipse, adjust exposure and other camera settings, and ultimately take better shots of the eclipse.

2024 eclipse compared to 2017

The last total solar eclipse occurred in 2017, and many Americans had a great view. Although there are plenty of similarities between the 2017 total solar eclipse and the one coming April 8, there are a handful of differences. Mainly, the 2024 eclipse is going to cover more land and last longer.

The 2017 eclipse started over the northwest US and moved southeast. Additionally, that eclipse’s path was up to 71 miles wide, compared with a maximum width of 122 miles for this year’s eclipse. Perhaps most importantly, the moon completely covered the sun for just 2 minutes, 40 seconds in 2017. This year, maximum totality will last for nearly four-and-a-half minutes.