Getting to and surviving on the Red Planet will take lots of innovation.
Science grapples with unknown phenomena all the time. Investigating “unidentified flying objects” shouldn't be different, researchers say.
Alternatively, this unseen wanderer might be a hefty neutron star. Whatever it is, its gravity caused starlight to be warped — and that gave it away.
The Perseverance rover recorded the sound of laser pulses on Mars. Scientists used those recordings to determine the Martian speeds of sound.
Volcanic eruptions billions of years ago may have produced several temporary atmospheres on the moon that held water vapor.
This magnitude 5 quake is offering scientists a peek at what’s going on beneath the Martian surface.
This tiny garden shows farming on the moon may be difficult, although not impossible.
This “dirty snowball” in space is about twice as wide as Rhode Island and darker than coal.
This clock measured how gravity changes the passage of time in different places — even spots just one millimeter apart.