OF201, the object belongs to the same all-star family as Pluto: dwarf planets. Its diameter, roughly 435 miles (700 km), is ...

Astronomers have uncovered a distant celestial body that may be a new dwarf planet, orbiting the Sun from more than twice the distance of Pluto. Found by researchers at the Institute for Advanced ...

When the Sun runs expands into a red giant, it will swallow the inner solar system and raise the temperature in the outer ...

A new book shows that the Northern Dene people of Alaska and Canada have known far more about the stars than an earlier ...

Could Mysterious Black Hole Burps Rewrite Physics?

For the dwarf planet candidate, one trip around the sun takes over 24,000 years. Its orbit challenges a proposed path for a hypothetical Planet Nine.

Computer simulations show that planets could be flung out of the inner solar system, supporting the possible existence of a ...

The 150-million-year-old specimen is valued at up to $6 million by Sotheby’s. Some paleontologists worry this auction and ...

Today’s Forbes Daily covers Trump Mobile cell service, latest on Israel-Iran conflict, deportation to target large US cities, billionaire builds travel business and more.

Researchers are fine-tuning recipes for a new kind of nuclear battery at Zeno Power's office-lab complex in Seattle.

Portal Space Systems will set up a 50,000-square-foot spacecraft manufacturing facility near its design and testing hub in Bothell, Wash.

Amazon's next group of Kuiper satellites could soon reach orbit, propelling the company closer to providing internet to ...