aug 192013
 
Dwarf Galaxy Caught Ramming Into a Large Spiral

  Observations with NASA’s Chandra X-ray Observatory have revealed a massive cloud of multimillion-degree gas in a galaxy about 60 million light-years from Earth. The hot gas cloud is likely caused by a collision between a dwarf galaxy and a much larger galaxy called NGC 1232. If confirmed, this discovery would mark the first time [continue reading]

jul 182013
 
Anne's Image of the Day: Smith's Cloud

July 18, 2013 Smith’s Cloud, a cloud of hydrogen gas in Aquila Image Credit: Bill Saxton, NRAO/AUI/NSF Smith’s Cloud is a huge cloud of hydrogen gas that measures some 9,800 light-years by 3,300 light-years, located between 36,000 and 45,000 light-years away from Earth in the northern constellation of Aquila (the Eagle). It has a mass [continue reading]

mrt 302013
 
New Evidence about Asteroid that Killed the Dinosaurs

  A new look at conditions after a Manhattan-sized asteroid slammed into a region of Mexico in the dinosaur days indicates the event could have triggered a global firestorm that would have burned every twig, bush and tree on Earth and led to the extinction of 80 percent of all Earth’s species, says a new [continue reading]

mrt 062013
 
Has Galactic Black Hole Swallowed its Counterpart?

  These days the core of the Milky Way galaxy is a pretty tame place…cosmically speaking. The galactic supermassive black hole at the center is a sleeping giant. Existing stars are peacefully circling. Although conditions are favorable, there doesn’t even seem to be much new star formation going on. Artist’s conception of satellite galaxy being pulled into [continue reading]

feb 252013
 
Asteroids with Comet-Like Trails

  Unlike comets, asteroids are not characterized by exhibiting a trail, but there are now ten exceptions. Spanish researchers have observed one of these rare asteroids from the Gran Telescopio Canarias (Spain) and have discovered that something happened around the 1st July 2011 causing its trail to appear: maybe internal rupture or collision with another asteroid. This [continue reading]

sep 282012
 
What Caused the Stellar Explosion in 1006?

  Between 30 April and 1 May of the year 1006 the brightest stellar event ever recorded in history occurred: a supernova, or stellar explosion, that was widely observed by various civilizations from different places on the Earth. More than a thousand years later a team led by researchers from the University of Barcelona, the [continue reading]