A comet tearing through the inner solar system at roughly 58 kilometers per second formed between 10 and 12 billion years ago ...

Planetary scientists have long debated where the material that formed Earth comes from. Despite its location in the inner solar system, they consider it likely that 6–40% of this material must have ...

Scientists are grappling with a cosmic mystery: why does the Universe behave differently on massive scales compared to our ...

The standard story of the origin of our solar system has gone like this: 4.6 billion years ago, a giant cloud of dust hung frozen in space. Then the explosion of a nearby star caused part of that dust ...

Rather than slowly condensing over millions of years, the first building blocks of Earth and other planets may have formed ...

Even at a glance, the planets in our solar system are wildly diverse. Huge and small, airless and densely packed with atmosphere, they have a wide range of characteristics distinguishing them. But if ...

"We not only reconstructed an unaltered image of the emissions from deep space, but also obtained valuable information on the ...