A massive gas giant orbiting a star about 855 light-years from Earth, WASP-121b may contain mineral clouds and rain made of liquid gemstones, according...
This artist's impression shows the first interstellar object discovered in the solar system, ``Oumuamua. Credit: ESA/Hubble, NASA, ESO, M. Kornmesser
Scientists will learn about...
Animation of NASA's Persistent Mars rover landing on Mars. Credit: NASA/JPL-Caltech
The rover has achieved a series of achievements, including new distance records, as...