 Worth knowing... |
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| Due to the "hellish" conditions on Venus | Monday, 23
April 2007
| | the best ship that landed, Venera 13, only lasted for 2 hours and 7 minutes. |
| | | | Radio signals from Earth | Sunday, 01
April 2007
| | reach a maximum distance of 5.4 AU. As a reference, Jupiter is 5.2 AU away, and a light year has 63.24 AU. |
| | | | A black hole, | Tuesday, 20
March 2007
| | with the mass of Earth, would have a Schwarzschild radius of just 7mm? However, the mass of the Sun would generate a black hole of about 1.1 km. |
| | | | Phobos will crush | Saturday, 24
February 2007
| | on Mars in the next 40 millions years, following the same fate as other ex-satellites of this planet. |
| | | | A black hole | Friday, 05
January 2007
| | with a mass of 1 million solar mases, has a radius of only 4 times bigger than the Sun? This radius is not the radius of the singularity, which is infinitely small, but of the event horizon. |
| | | | While matter now dominates, | Friday, 24
November 2006
| | in the first seconds of the universe, the imbalance between matter and anti-matter was only 3 particle in a billion? |
| | | | The interstellar medium | Tuesday, 07
November 2006
| | It is not empty?It's filled by a mixture of ionized gases and dust, which can decrease stellar light in an observable way. |
| | | More news
» The chemical elements needed for life 24
October 2006
» In the Standard Model 30
September 2006
» If you would touch a white dwarf star 16
September 2006
» Barnard's Star 28
August 2006
» Our universe 21
August 2006 |
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