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
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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
For the first time, we're seeing the Sagittarius A* black hole in polarized light. The Event Horizon Telescope collaboration says the image offers a new look at "the magnetic field around the shadow of the black hole" at the center of the Milky Way. EHT Collaboration hide caption
Student volunteers prepare two balloons for a morning launch in Cumberland, Md., as part of a nationwide project to study the April 8 eclipse. Meredith Rizzo for NPR hide caption
NASA astronaut and Expedition 70 Flight Engineer Loral O'Hara is pictured working with the Microgravity Science Glovebox, a contained environment crew members use to handle hazardous materials for various research investigations in space. NASA hide caption
What's it like to live in space? One astronaut says it changes her dreams
Astronaut Tom Stafford (left) and cosmonaut Alexey Leonov shake hands after the first docking of U.S. and Soviet spacecraft in 1975. AP hide caption
NASA astronaut Tom Stafford, famed for U.S.-Soviet orbital handshake, has died at 93
A woman watches an annular solar eclipse on October 14, 2023 using special solar filter glasses at the National Autonomous University of Mexico. Carlos Tischler/ Eyepix Group/Future Publishing via Getty Images hide caption
Watching a solar eclipse without the right filters can cause eye damage. Here's why
People await the partial lunar eclipse over Vienna, on July 16, 2019. Astronomers say the comet 12P/Pons-Brooks will soon be visible to the naked eye. Georg Hochmuth/AFP via Getty Images hide caption