Earth receives about 7 percent less light during aphelion than during its closest approach to our star, yet the average ...

One of the great ironies of the year is the fact that in the heat of the summer in the northern hemisphere, the Earth is much ...

Look to the west to catch Venus and Jupiter shining bright, with Saturn and Mars visible in the east for early risers, and ...

I’ll still be chiming in to the newsletter from time to time, so keep in touch at matthew.choi@washpost.com! The Neil Gehrels ...

As the United States prepares to celebrate its 250th anniversary, the history of the solar system tells its own story of ...

Here's your chance to live like an astronaut as NASA seeks volunteers to live in a habitat for a year simulating future moon ...

How is it possible for the ISS to stay in orbit? Learn more about the science behind orbiting Earth and more in this NASA ...

Looking for a sky event this week? Check out our full Sky This Week column. July 3: Glimpse the Milky Way's center Mars ...

A person standing on the largest volcano in the solar system would never know it. Olympus Mons rises 70,000 feet over Mars on ...

A conjunction on Saturday, July 4, sees Mars and faint Uranus extremely close together in the pre-dawn sky, offering ...

STARBASE, Texas — During a presentation, SpaceX CEO and founder Elon Musk shared how he plans to use Starship to reach the planet Mars, and how in a few short years, there is a chance humans could ...

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