Our solar system now, once again, officially consists of only eight planets. Although largely debunked, speculation continued ...

Exoplanet hunters Christopher Watson and Annelies Mortier explain the long search for a 'twin Earth' capable of sustaining ...

The month brings a spectacular lineup of celestial sights—including a rare chance to see Mercury without a telescope and a ...

This quasi-moon is expected to remain in its current near-Earth orbit for about another 60 years before the gravitational tug ...

THAT’s NO MOON - Earth doesn’t just have one moon; sometimes, it has a companion satellite or “mini-moon.” Discovered on August 2 and reported in September, this is not breaking news. Asteroid 2025 ...

Her determination eventually led her to join NASA and take a leading role in building the International Space Station through ...

Nestled beneath sandstone cliffs in southwestern Bulgaria, Melnik is the country’s smallest town by population—but rich in ...

Thank you to Keeps for sponsoring this video! Head to <a href=" to get a special offer. America's Smallest Counties Counties, ...

Unlike the moon with which we are familiar, which is 2,159 miles wide and located about 239,000 miles away, according to NASA ...

Mars is an inhospitable desert planet. Billions of years ago, things were different. In Jezero Crater, for example, fed by a ...

An international team of researchers has published a report on how Mars samples should be handled from a scientific point of ...

We’d certainly know about it if an asteroid hit Mars or the moon, but just how much Earth would be affected depends on a number of factors ...