Grades 9-12 Learn about the cause of sunburns, in this video from NOVA’s Gross Science series. Sunlight is made up of many ...

1. The solar wind has been blowing non-stop since the Sun formed about 4.6 billion years ago. 2. It travels about 1 million miles an hour. 3. It carries about 1.5 million tons of mass away from ...

Astronomers have discovered the earliest seeds of rocky planets forming in the gas around a baby sun-like star, providing a ...

AN INTERSTELLAR space rock zooming through our solar system may be the oldest comet ever seen by humans, according to ...

A MYSTERIOUS cosmic object has been spotted zooming through our solar system – and astronomers say it is only the third of its kind. The “fuzzy” object with a “short ...

Mercury is the smallest planet in the Solar System and also the closest planet to the Sun. Mercury orbits the Sun at an incredibly fast speed, averaging nearly 106,000 miles per hour. These are just a ...

Enjoy a free stargazing lecture followed by a Q&A panel and guided stargazing with telescopes (weather permitting). By Since ...

NASA telescopes in Chile have discovered a comet from interstellar space, making its closest approach in October.

The latest solar flare follows an M-class one, the second-highest on the scale, that occurred days earlier on June 15. It caused a shortwave radio blackout across North America, with a loss of signal ...

Stars passing close to the sun could cause planets to collide, including with Earth, or even be ejected as rogue planets, new simulations show. By Katherine Kornei If our species manages to hang ...