In world-first observations, the James Webb Space Telescope is watching two distant alien planets "spilling their guts into ...

Seven worlds align under one sky in a breathtaking photograph captured by astrophotographer Josh Dury. Astrophotographer Josh Dury captured this stunning photograph of the seven-planet alignment on ...

Geochemical evidence from laboratory experiments for a potential solid inner core at the center of Mars is reported in Nature ...

For example, Mercury, being closest to the sun, takes just 88 Earth days to complete one orbit. On the other hand, Neptune, ...

Mars, Venus, Jupiter, Mercury and Saturn should be visible to the naked eye. You'll need a high-powered viewing device like a ...

Seven planets grace the sky at the end of February in what’s known as a planetary parade, though some will be difficult to spot ...

Prepare for an unforgettable “planet parade” as 7 planets will align in a rare celestial event on Feb. 28, for the last time ...

Hubble Space Telescope observations of white dwarf star G238-44 has shown that it is "consuming both rocky-metallic and icy material, the ingredients of planets," according to NASA's Goddard Space ...

NASA's Europa Clipper will streak just 550 miles (884 kilometers) above the surface of Mars for what's known as a gravity assist—a maneuver to bend the spacecraft's trajectory and position it for a ...