With an equatorial diameter of 7926 miles (12,760 kilometers), our planet Earth is the biggest of the terrestrial planets and the fifth largest planet in our solar system. It is the only planet in the ...

On the 95th anniversary of its discovery, Pluto remains one of the most beloved and enigmatic worlds in our solar system, ...

Their discovery showed that even tucked away in our innards – in the walls of our stomachs, subjected to vinegar-like pH ...

From the beginning of time to the origins of life, our "when" special series tackles the timing of crucial events and the ...

Hunting for alien civilizations isn't a matter of just waiting around for them to show up; it's the business of combing ...

NASA has officially upgraded the likelihood of Earth being hit by an asteroid. The space rock, known as 2024 YR4, has been upgraded a number of times. At the end of January it was given a 1 per cent ...

Here are today's general risks from asteroids or comets both tiny and very large. Importantly, even relatively small rocks ...

Chinese scientists have been continuously observing an asteroid that may collide with Earth in 2032 since early January, ...

YR4 was first reported to the Minor Planet Center by NASA's Asteroid Terrestrial-impact Last Alert System (ATLAS) in Chile on January 27, 2025.

NASA data released Tuesday said there is now a 3.1 percent chance a "city-destroying" asteroid could smash into Earth in 2023 ...

NASA just increased the odds that “city-killer” asteroid YR4 2024 will strike our planet in 2032. The space agency claimed that the dangerous space rock now has a 1-in-38, or 2.6 per cent, chance of ...