Solar System
Explore Solar System
Latest about Solar System

Halley's Comet begins its 38-year journey back toward Earth tonight
By Joe Rao published
On Friday, Dec. 8, Halley's Comet reaches its farthest point from the sun and begins its journey back through the solar system.

DARPA moon tech study selects 14 companies to develop a lunar economy
By Meredith Garofalo published
We've seen the movies and read the books about what it would be like to have a lunar habitat — but to turn our Sci-Fi fantasy into a reality, scientists must develop a game plan.

Strange underground polygons on Mars hint at Red Planet's wet past
By Sharmila Kuthunur published
Buried dozens of meters under the equator of Mars is a large honeycomb pattern similar to, but much larger than, those found only near Earth's frigid poles.

What is the moon phase today? Lunar phases 2023
By Tariq Malik last updated
Reference See what moon phase it is tonight and find out when you can see the rest of the moon phases for 2023.

Why is there so much military interest in the moon?
By Leonard David published
The United States' use of military agencies such as DARPA to develop emerging technologies for the moon could be sending a wrong message.

Scientists study violent 'superflares' on stars thousands of times brighter than the sun
By Robert Lea published
Scientists have used solar flares from the sun to determine the physics driving powerful and violent 'superflares' on massive stellar bodies that are up to 10,000 times brighter than our star.

Signs of life shooting from Saturn's moon Enceladus would be detectable by spacecraft, scientists say
By Rahul Rao published
Scientists believe possible amino acids in Enceladus' subsurface ocean can indeed be detected by spacecraft.

India sets sights on a moon base by 2047
By Andrew Jones published
India is setting long-term goals that could see the country establish its own moon base before 2050.
Get the Space.com Newsletter
Breaking space news, the latest updates on rocket launches, skywatching events and more!