Earth may have a moon today because a nearby neighbor once crashed into us, a new analysis of Apollo samples and terrestrial ...

Mercury is the innermost and smallest of the eight major planets in our Solar System, orbiting closest to the Sun. Though ...

New findings suggest that diurnal tides, driven by solar heat, are a major contributor to the extreme speeds of Venus's winds ...

Ask someone on Earth for the time and they can give you an exact answer, thanks to our planet's intricate timekeeping system, ...

What can star variability—changes in a star's brightness over time—teach astronomers about exoplanet habitability? This is ...

After decades of searching, astronomers may have finally stumbled upon the first moon known to exist beyond our solar ...

The picture-perfect launch of twin Escapade orbiters bound for Mars presages a fantastical new age in exploring the planets, ...

Apollo samples provide evidence: Researchers analyzed Moon rocks brought back by the Apollo missions and, for the first time, ...

Still, science being science, we needed proof—and we got it in 1992, when two astronomers found two planets orbiting a pulsar ...

How will defects in the material improve the capabilities of satellites and help create new flexible microelectronics devices?

Could you survive a day on every planet in our solar system? Experience the extreme conditions across the planets in a single ...

Astronomers measure the speed at which the solar system is hurtling through space by mapping surrounding galaxies and ...