February is ending with a bang as six planets align in the night sky on Saturday. Mercury, Venus, Jupiter, Saturn, Uranus and Neptune will all be visible in the evening sky on Saturday, but you might ...

Water ice on Mars, bubbling gas on a distant star, a snow-covered island, and a pre-planetary nebula are featured this week. Plus, a look back at an image of Mars taken by the Dawn spacecraft during a ...

Why it matters: While not evidence of life, these discoveries show that ancient Mars had complex organic chemistry, ...

If you think auroras on Earth are a strange and mesmerizing sight, that's nothing like what occurs on the perplexing world of Uranus.

Luckily, it did not have to face Shelob, but it might have learned about the past habitability of the Red Planet.

Six planets will align on Feb. 28, but not all will be seen with the naked eye. Here's how to watch the cosmic parade.

Min Read For the first time, a much younger version of the Sun has been caught red-handed blowing bubbles in the galaxy, by ...

At first glance, it seems impossible: Hubble Space Telescope can capture galaxies billions of light-years away, yet Pluto often appears as little more than a fuzzy disk. The reason comes down to ...

SpaceX added another 38 Starlink satellites to its global constellation, sending booster B1067 into space for a record 33rd time ...

What can be known when a comet which never was of the Sun, crosses the instrumented surface of the Solar System, momentarily?

Mars Global Localization (MGL), a tech similar to GPS on Earth, lets Perseverance nail down its coordinates to about 10 inches.