Space
- Earth
Scientists Say: Altitude
Altitude is used to describe heights in geography, astronomy and math.
- Planets
Let’s learn about Jupiter’s moons
Jupiter has nearly 100 known moons — some of which look like prime spots to search for alien life.
- Space
Scientists Say: Accretion Disk
Cosmic swirls of gas, dust and plasma, accretion disks reveal the shadowy silhouettes of black holes and more.
- Planets
Planets like Star Wars’ Tatooine could be fit for life
Like Luke Skywalker’s home, planets orbiting two stars may be plentiful. A new computer model suggests that many of those worlds could sustain life.
- Space
The next astronauts to walk the moon will be more diverse than the last
Space agencies are preparing to send the next generation of astronauts to the moon and beyond. Here’s how future crews will differ from the last.
- Earth
Scientists Say: Equinox and Solstice
Equinoxes and solstices mark the maximums, minimums and mediums of hours spent in daylight.
- Space
Spacecraft traveling through a wormhole could send messages home
A probe going through a wormhole should be able to send messages home before such a tunnel forever closes, a new computer model finds.
- Planets
Saturn’s moon Enceladus wears a thick blanket of snow
Pits on the frosty moon reveal the snow’s surprising depth, up to 700 meters (2,300 feet) in some places.
- Planets
The dwarf planet Quaoar hosts an impossible ring
Quaoar’s ring lies outside the Roche limit. That’s an imaginary line beyond which rings aren’t thought to be stable.
- Space
NASA is readying to send humans back to the moon
The launch of NASA's Artemis I is a huge step toward sending humans back to the moon and beyond.
- Planets
Mars might still be volcanically active, quakes there suggest
Seismic rumblings picked up by NASA’s InSight lander hint at molten rock moving deep below the planet’s fractured surface.
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