Astronomy & Space news

What drives the solar cycle?

You can be thankful that we bask in the glow of a relatively placid star. Currently about halfway along its 10 billion year career on the Main Sequence, our sun fuses hydrogen into helium in a battle against ...

dateMar 30, 2015 in Space Exploration
shares36 comments 2

A new look at the sun's magnetic field

Sunspots, bursts of radiation and violent eruptions are signs that our sun is permanently active. Researchers have long known that this activity varies in a cycle of around eleven years' duration. Even if ...

dateMar 27, 2015 in Space Exploration
shares65 comments 2

'Teapot' nova begins to wane

A star, or nova, has appeared in the constellation of Sagittarius and, even though it is now waning, it is still bright enough to be visible in the sky over Perth through binoculars or a telescope.

dateMar 27, 2015 in Astronomy
shares1342 comments 2

Rocky planets may orbit many double stars

Luke Skywalker's home in "Star Wars" is the desert planet Tatooine, with twin sunsets because it orbits two stars. So far, only uninhabitable gas-giant planets have been identified circling such binary stars, ...

dateMar 30, 2015 in Astronomy
shares103 comments 0

Cassini: Return to Rhea

After a couple of years in high-inclination orbits that limited its ability to encounter Saturn's moons, NASA's Cassini spacecraft returned to Saturn's equatorial plane in March 2015.

dateMar 30, 2015 in Space Exploration
shares20 comments 0