Asteroids that orbit close to the Earth inevitably cause us some anxiety due to the even remote possibility of a collision.

Learn about the life and scientific contributions of Johannes Kepler, the 17th-century astronomer known for his laws of ...

New findings explain the Phoenix cluster's mysterious starburst. Data confirm the cluster is actively cooling and able to generate a huge amount of stellar fuel on its own.

Galileo precedes today’s physicists by many generations, but his work underscores the interplay of intellect and observation ...

I recently saw a YouTube video by Hank Green discussing how important the Galilean moons are in our understanding of the solar system and the universe as a whole. The ...

Baghdad falls to the Mongols as the Abbasid Caliphate is destroyed and tens of thousands are slaughtered. 1542: Catherine ...

William Matthaeus, the Martin A. Pomerantz Chair of Physics and Astronomy at the University of Delaware, has won UD’s highest ...

National Inventor’s Day honors inventors of the past, the creators of the present, and encourages the architects of the ...

Large-scale ground-mounted solar parks are relatively new phenomena. Over time, ideas have been put forward about how they can accommodate ...

To get somewhere in outer space, you can’t exactly drive in a straight line. Orbits are tricky things, and sending a probe to ...

Of all the planets in our solar system apart from Earth, Saturn tends to steal the show with its breathtaking rings, which have fascinated people for centuries.

VISITORS to the Moon could race across the planet’s surface in an “extreme” car dropped there by Elon Musk. That’s the vision of a Nasa-backed company that is working on a ...