International Asteroid Day is observed to help people understand how dangerous it could be if an asteroid ever hit the Earth.

Why do we have a special day to celebrate space rocks? On June 30, 1908, a massive explosion over Tunguska in Siberia flattened approximately 2,150 sq.km of forest. This was attributed to the airburst ...

Two possible origins Researchers propose two hypotheses. According to the first, Vesta may have formed a bit too late, at a time when the internal heat source, a radioactive element called 26 Al, had ...

Read What are asteroids?Asteroids are rocky objects that orbit the Sun just like planets do. In fact, sometimes asteroids are ...

Asteroid Vesta, once thought to be a protoplanet that had been left behind in its formation, is now the subject of a groundbreaking investigation of what may be a remnant of a far larger planet ...

Located between Mars and Jupiter lies Vesta, the second-largest body within the main asteroid belt. For generations, astronomers thought Vesta wasn’t an ordinary asteroid: It also contained ...

The asteroid Vesta could be a huge chunk of planet that was blasted off its parent world and sent spinning into space in the aftermath of a titanic collision four-and-a-half billion years ago.

An alternate explanation that fits the evidence is that Vesta was once part of a planet – but which planet that might been remains a mystery.

Vesta, thought to be the second-largest asteroid in the solar system, could be a piece of an ancient, unknown planet, a new study hints.

Vesta, one of the two largest bodies in our solar system's asteroid belt, has long been thought to be more than just another asteroid. Scientists had concluded that it sported some fundamental ...

For decades, scientists believed Vesta, one of the largest objects in our solar system’s asteroid belt, wasn’t just an asteroid and eventually concluded it was more like a planet with ...