Space

My kids asked me if there was enough water in the universe to quench the Sun.  I voted yes, but of course science isn't about voting, but about verifiable facts.  So now the explanation.…

The Big Bang is believed to have created a flood of gravitational waves that still fill the universe with information about its existence immediately after the Big Bang. These waves would be observed…

RCW 38 is a dense star cluster about 5500 light years away in the direction of the constellation Vela (the Sails). Like the Orion Nebula Cluster, RCW 38 is an embedded cluster, in that  clouds…

The mystery of the solar corona may be resolved.  ScientificBlogging has covered this, as did space.com, Space Fellowship, and other sites.  Two of them couldn't resist the same money quote…

Our society is saturated with GPS, or Global Navigation Satellite System (GNSS), applications. GPS is the first GNSS and it is operated by US Air Force. Most people are not aware of the fact that GPS…

NASA scientists have discovered glycine, a fundamental building block of life, in samples of comet Wild 2 returned by NASA's Stardust spacecraft. "Glycine is an amino acid used by living organisms…

If you have never seen a fireball lighting up the night sky I bet you will appreciate the video below, which was taken by Ivaldo Cervini over Italian skies a few days ago. It is a Perseid meteor,…

Planetary nebulae are gas and dust shells ejected by stars near the end of their lives - typically seen around stars comparable or smaller in size than the Sun. The existing population of planetary…

The Gravity Recovery and Climate Experiment (GRACE) is a twin-satellite system to study in detail the Earth's gravity field. The GRACE data consist of  accelerometer, GPS, and…

Small bursts of heat and energy called nanoflares cause temperatures in the sun's atmosphere to reach millions of degrees, according to NASA researchers.. The sun's outer atmosphere, or corona, is…