An historical study from former U.S. military officials found that a solar flare was nearly responsible for military conflict with the Soviet Union in May 1967.
Careful tracking of NASA’s Dawn spacecraft reveals that Ceres has a rocky core and a thick ice-and-salt crust. Maybe a briny ocean still lies buried inside.
Cassini radar observations reveal a channel system on Saturn’s biggest moon, Titan, that is drowned in liquid methane.
The Antarctic observatory known as IceCube has ruled out the existence of a fourth type of neutrino particle — and one-time dark matter contender — known as the light sterile neutrino.
If you missed the Perseids last night, try again – the shower should still be active late tonight and at lesser levels for the next few days. Meanwhile, the Moon turns full on Wednesday and Venus returns to evening skies.
A Real Scorcher! – Sirius At Heliacal Rising
Make a connection to a time when stars were used to track seasons and predict natural events by watching the heliacal rising of Sirius.
The Perseids may have peaked, but the night skies still have quite a show in store for us this month. Download our podcast and get a guided tour of the night sky.
Late-night skywatchers were rewarded with a fine showing of the annual Perseid meteor shower. Whether it was really twice its normal peak visual intensity, as was widely predicted, awaits a final count.
S&T contributing editor and amateur spectroscopist Tom Field joins S&T senior editor Alan MacRobert to talk all things spectroscopy – whether you’ve always wanted to try it or you’ve got questions about ongoing projects, here’s your chance to talk to the experts.