We have mapped and discovered a large portion of the most dangerous asteroids in the Solar System, but there is a glaring ...

Image specialist Andy Saunders on mining NASA's archives for the ultimate record of America's early space programs ...

The simulation of the Solar System that came the closest to the observation was the presence of a small planet, between the ...

Space scientists look back on three decades of exoplanet discoveries—from rows of massive ‘super-Earths‘ to worlds with ...

Jaw-dropping scenes show a "train" of Elon Musk's Starlink satellites in orbit - along with an impressive aurora. NASA ...

The law, though, doesn’t say the first to arrive is the first to go; that’s an interpretation of the law. Instead, it says ...

Planets that orbit white dwarf stars should be too hot to host alien life, theories suggest. But a new study accounting for ...

A new study suggests yet another theory for a possible extra planet in our solar system, likely of a size between Mercury and ...

Prime Minister Anthony Albanese faces one of his most important tests of diplomacy today as he meets Donald Trump at the ...

The month is packed with skywatching highlights—including two galaxies visible to the naked eye and a rare glimpse of the ...

The formation of Mercury remains an unsolved mystery. The planet closest to the sun has a disproportionately large metallic core—accounting for about 70% of its mass—and a relatively small rocky ...