They noted that any larger asteroid formed very early on in the solar system would have been heated to high temperatures by the decay of large amounts of aluminum-26, a radioactive nuclide ...

They noted that any larger asteroid formed very early on in the solar system would have been heated to high temperatures by the decay of large amounts of aluminum-26, a radioactive nuclide ...

Two of the most mysterious planets in our solar system are Uranus and Neptune. These planets are also known as ice giants, due to their intermediate-mass and size which suggests an ice-rich ...

Standard planet-formation models have been unable to reconstruct the distributions of the Solar System's small, rocky planets and asteroids in the same simulation. A new analysis suggests that it ...

How our planets were formedFormation of the solar system in two different planetary populations: the inner rocky planets formed earlier than the outer gas and ice giants. (Illustration: Mark A ...

Researchers have laid out a new, comprehensive theory for how the solar system formed — inside the bubble of a long-dead, giant star.

Tiny shavings from a single meteorite could completely overturn our understanding of how the solar system formed, after the space rock turned out to be older than expected. Previous research ...

Since the first discovery of planets beyond the solar system in 1995, more than 6,000 exoplanets have been identified. Many ...

Ever since scientists started looking at meteorites with microscopes, they’ve been puzzled—and fascinated—by what’s inside. Most meteorites are made of tiny beads of glass that date back to the ...

Despite the many impressive discoveries humans have made about the universe, scientists are still unsure about the birth story of our solar system. Scientists with the University of Chicago have laid ...

The first observed interstellar object blazed through our solar system more than two years ago. Astronomers scrambled to observe the object in October 2017 before it disappeared, and their ...