If a rogue black hole doesn't come very close to the Earth, we might not notice any effects at all. "A very small black hole could possibly travel through the solar system largely unnoticed ...

The key was laborious work tracing the paths of meteoroids backward across the solar system, and simulating the orbital evolution of asteroid fragments. Through this work, it was found that the ...

Just when you thought you knew all the worlds in the solar system, astronomers go and discover a new object that could rewrite the space map. This icy world, temporarily named 2017 OF201, could be ...

Astronomers have found an unusually large planet orbiting a small star, located about 280 light-years from Earth. The unexpected size of the newly discovered world, called TOI 5205b, has caused ...

Dear Tom,Why is the Earth’s moon just called “the moon,” but the moons of other planets in the Solar System have specific names?—Donna Hirsch, Worth, Ill.Dear Donna,The Earth’s moon is ...

This is interesting: a size comparison of every moon (natural satellite of a planet) in the solar system larger in diameter than 100 km – all 34 of them – viewable in Google Earth. Download ...

In fact, the Earth is probably made of them. These are some of the oldest rocks in the Solar System, some dating to its very origin at just over four and a half billion years old.

The solar system sits some 26,500 light years from the galactic centre, about halfway along a spiral arm. We orbit the centre of the Milky Way about once every 240 million years.

Scientists believe that two asteroids might be fragments of long-lost "planetary embryos" from the early solar system. These embryos, somewhere between small planetesimals and fully formed planets ...

Experts say that there is a 12% chance of a large solar storm hitting Earth every 10 years. While solar storms aren’t harmful to humans, such events can be massively disruptive to our power system.

Barnard's star, less than six light-years from us, is the closest single-star system to our sun. The new world, called Barnard's star b, or GJ 699 b, is at least 3.2 times as massive as Earth.