A new calculate of potentially dangerous asteroids

Comments approved out by the Wide Field Infrared Explorer to Survey (Wide-field Infrared Survey Explorer, or WISE, for its acronym), NASA, have yielded the best on record count Today the population of potentially hazardous asteroids in our solar system. Also known as "PHAs" (acronym for Potentially Hazardous English Asteroids), these asteroids have orbits within about eight million kilometers (five million miles) from Earth's orbit and are large enough to survive passing through the Earth's atmosphere and cause damage on a regional,

A cosmic collision might fade away the water

A cosmic impact might have been the cause of a temporary warming of Mars and, therefore, the disappearance of water on its surface, according to a study published in international 'Astrobiology Magazine. Experts have said that this discovery could help explain how a planet so cold and dry ever could contain liquid water and potentially favorable conditions for life.

From the center of the galaxy Ghost beams of gamma rays rising

The center of the Milky Way shows little activity in contrast. It was not always so peaceful. New evidence of ghost beams of gamma rays suggests that the central black hole of our galaxy was much more active in the past.

"These jets are faint ghost or just a sequel to what existed for millions of years," said Meng Su, an astronomer at the Harvard-Smithsonian Center for Astrophysics (CfA), and author of a new article in the Astrophysical Journal. "But it reinforces the evidence that there was an active galactic nucleus in the relatively recent past of the Milky Way," he added.