The head of planetary defense at the European Space Agency discusses 2024 YR4, an asteroid with a small chance of striking ...

Mercury takes only 88 Earth days to orbit the sun.

In 2021, NASA gave the all-clear to another potentially worrisome asteroid, Apophis, after new telescope observations ruled ...

The $10 billion orbiting observatory will give astronomers a better sense of the near-Earth asteroid 2024 YR4's size and ...

An asteroid could potentially crash into Earth in less than eight years. Here's everything to know about asteroid 2024 YR4.

An asteroid could hit Earth, but scientists are continuing to gather data to understand its trajectory and potential impact ...

They say that viable nuclear fusion on Earth will ... than the sun to compensate for our planet’s energy needs. The temperature at the core of the sun is estimated to be around 15 million ...

There are eight planets in the solar system, and each travels on its own path around the sun ... so slowly — once every 58 Earth days — in some places, the sun can appear overhead for weeks ...

An asteroid known as 2024 YR4 has a 97.9% chance to safely pass the Earth in 2032, as per NASA scientists. If it strikes, the ...