NASA is about to launch the most powerful space telescope ever
The James Webb Space Telescope will let astronomers peer farther into space than ever before, to see what galaxies looked like when the universe was newly born.
Space
Astronaut Chris Cassidy invites you inside the International Space Station
Cassidy is one of the astronauts featured on the Disney+ documentary series Among the Stars, which gives viewers a behind-the-scenes look at NASA as it prepares and executes various missions.
You'll have the best view of the Geminid meteor shower overnight Monday
Although the moon will brighten up the sky and make it harder to see the Geminids this year, astronomers say from about 2 a.m. to sunrise, no matter your time zone, will be prime viewing time.
NASA names 2021 astronaut candidates as it plans for moon missions
The group of would-be astronauts includes four women and reflects a broad stretch of America, from Alaska to Puerto Rico.
Leonard is the brightest comet all year. Here's how to see it
The comet was discovered less than a year ago near the orbit of Jupiter. Now, observers in North America can see it in the northeastern sky around sunrise.
Astronomers find a new planet that's mostly made of iron
NASA's TESS telescope finds a small, iron-rich planet which could help explain the origins of Mercury, the innermost planet in our solar system
NASA launches 1st-ever practice mission to defend Earth from asteroids
NASA is launching its first-ever practice mission to redirect an asteroid. The launch is part of a planetary defense strategy if an object ever threatens Earth in the future.
In a first test of its planetary defense efforts, NASA's going to shove an asteroid
NASA is about to launch the first mission of its new planetary defense office. A spacecraft will attempt to knock a small asteroid off course by ramming into it.
PHOTOS: The historic partial lunar eclipse around the world
The lunar event was the longest partial lunar eclipse in 580 years. Almost the entire moon — 99.1% — was cast under the earth's shadow.
The longest lunar eclipse in nearly 600 years happens early Friday morning
For U.S. viewers, the peak of the eclipse — when the moon is the most covered by Earth's shadow — will be at 4:03 a.m. ET.