A powerful new observatory is the best hope yet for finding the elusive Planet 9, a large planet that some scientists say is ...

For the first time, scientists have found strong evidence of a "polar planet"—a planet whose orbit is tilted at 90 degrees ...

The giant eye on the sky with its 39 metres diameter main mirror made of 798 segments will gather light from distant stars and galaxies: 15 times more than the largest telescopes today.

A new trail in this southern Arizona city plots the most visitor-friendly astronomy stops—and there are plenty to choose from ...

Astronomers have found a planet that orbits at an angle of 90 degrees around a rare pair of peculiar stars. This is the first ...

When I was in grade school I was fascinated by the world’s largest telescope: the 200-inch-diameter Hale Reflector on Palomar Mountain near San Diego.

Research using detailed simulations based on public plans for the green energy plant shows serious harm to southern ...