YR4 is a tailor-made asteroid for planetary defence efforts — it has everything it takes to get our attention." ...

Earth is perfectly safe from a menacing asteroid known as 2024 YR4 that is big enough to level a city, but the moon? Not so ...

Climate activist Greta Thunberg, center, waits to board the Madleen boat, before setting sail for Gaza along with activists ...

An asteroid the size of a 10-story building could collide with the Moon in 2032 – and NASA just upped its impact odds again ...

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"I don't think it is an overstatement to say that morale among U.S.-based scientists is at an all-time low." Since January, ...