The planets Mercury, Venus, Earth, and Mars, are called terrestrial because they have a compact, rocky surface like Earth’s terra firma. The terrestrial planets are the four innermost planets in the ...

Mastcam will be busy in this plan, acquiring a large 70-frame L0 mosaic covering the entire crater to assess its morphology, as well as stereo imaging on the western rim where more dark rocks are ...

Analyzing data from NASA’s Hubble Space Telescope and several other observatories, astronomers have concluded that the bright red supergiant star Betelgeuse quite literally blew its top in 2019, ...

In March, a NASA-led research team announced that Jakobshavn Isbrae, Greenland’s fastest-flowing and thinning glacier over the past two decades, is now flowing more slowly, thickening and advancing ...