This illustration shows the Milky Way, our home galaxy. NASA/JPL-Caltech hide caption
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A Long March rocket carrying a crew of Chinese astronauts in a Shenzhou-18 spaceship lifts off at the Jiuquan Satellite Launch Center in northwestern China on Thursday. Andy Wong/AP hide caption
Ed Dwight poses for a portrait in February to promote the National Geographic documentary film The Space Race during the Winter Television Critics Association Press Tour in Pasadena, Calif. Chris Pizzello/Invision/AP hide caption
In March 2021, mission controllers in Houston used the Canadarm2 robotic arm to release an external pallet packed with old nickel-hydrogen batteries from the International Space Station. Three years later, part of that assembly struck a house in Naples, Fla. NASA hide caption
Members of the Voyager team celebrate at NASA's Jet Propulsion Laboratory after receiving data about the health and status of Voyager 1 for the first time in months. NASA/JPL-Caltech hide caption
A Leonid fireball is shown during the storm of 1966 in the sky above Wrightwood, Calif. NASA/Getty Images hide caption
COMIC: Our sun was born with thousands of other stars. Where did they all go?
An artist's rendering shows the T Coronae Borealis star system, which contains a white dwarf and a red giant. Conceptual Image Lab/Goddard Space Flight Center/NASA hide caption
A new lunar time zone has been pitched for the moon. John Raoux/AP hide caption
NASA has been asked to create a time zone for the moon. Here's how it would work
Junior Espejo looks through eclipse glasses being handed out by NASA in Houlton, Maine. Used correctly, eclipse glasses prevent eye damage. Joe Raedle/Getty Images hide caption
People visit a NASA information booth to grab solar eclipse glasses in Russellville, Arkansas. The space agency has debunked a number of myths about the total solar eclipse — including ideas about food going bad, or unborn babies being harmed. Mario Tama/Getty Images hide caption
Amos Yew, right, uses a lens on an iPhone to record video in the first stages of the total solar eclipse Monday August 21, 2017 in Madras, Oregon. AFP Contributor/AFP via Getty Images hide caption
Hundreds of balloons are being launched into the path of the eclipse as part of a program to educate students. Meredith Rizzo for NPR hide caption
A person uses a pair of binoculars to watch the moon pass infront of the Earth's star marking a total eclipse in Vigo, northwestern Spain on March 20, 2015. MIGUEL RIOPA/AFP via Getty Images hide caption
Storms moving across the United States will make it hard for eclipse chasers to get a clear view of totality — the moment when the moon fully blocks the sun, creating a brilliant crown-like effect. Mark Humphrey/AP hide caption
Pinhole shadows show crescent shapes in 2019 as the moon moves in front of the sun — one of several unique phenomena we can see during a solar eclipse. Louis Kwok /AFP via Getty Images hide caption
A group of children don eclipse glasses to watch the 2017 solar eclipse at Grand Tetons National Park in Wyoming. VW Pics/Universal Images Group via Getty Images hide caption
A lot of kids got to see the last total eclipse. What they remember may surprise you
Visitors look through a pair of oversized eclipse glasses set up in the town square on Sunday in Houlton, Maine. Joe Raedle/Getty Images hide caption
RV traffic sits at a standstill along a two-lane road near Madras, Ore., a few days before the 2017 total solar eclipse. Experts say traffic could be heavy, but eclipse watchers shouldn't necessarily be deterred. AFP Contributor/AFP via Getty Images hide caption
From left: didn't stop, can't stop, won't stop Leon Neal/Getty Images; Ronaldo Schemidt/AFP via Getty Images; David Becker/Getty Images hide caption
Dancers perform as a solar total eclipse occurs in Matantimali, Central Sulawesi on March 9, 2016. OLA/AFP via Getty Images hide caption
A woman views the solar eclipse in the first phase of a total eclipse in Grand Teton National Park on August 21, 2017 outside Jackson, Wyoming. George Frey/Getty Images hide caption
The moment of totality during a solar eclipse in Glendo, Wyo., on Aug. 21, 2017. John T. Meader hide caption
Diamond ring effect as seen from Scottsville, Kentucky during the 2017 total solar eclipse. Philip Yabut/Getty Images hide caption