Poll: Obama
What do you think about Obama's plan to castrate the NASA and to scrap the Constellation program?
Astronomy
Black Holes
Black holes are objects so dense that not even light can escape their gravity and since nothing can travel faster than light, nothing can escape from inside a black hole. The expression black hole was coined by John Wheeler.
Brown Dwarfs
Brown dwarfs are the link between stars and planets and are not massive enough like stars on the main sequence and sometimes called as failed stars. As a result of their mass-poor they don't start the hydrogen fusion. But brown dwarfs heavier than 13 Jupiter masses do fuse deuterium....
Mars
The planet Mars is the last terrestrial planet and the fourth planet of our solar system. He is the most likely target for a manned space mission. Already the first ancient civilizations were fascinated by him and honoured Mars as a god (for Romans/Greeks were he the god of war)....
Venus
Venus is the second planet from the sun and belongs to the terrestrial planets, sometime Venus is called Earth's sister planet, because both are very similar in size, mass and composition. Venus is named after the Roman goddess of love....
White Dwarfs
White dwarfs develop when a star from maximum 1.4 solar masses dies. These stars are not heavy enough to generate the core temperatures required to fuse carbon in nucleosynthesis reactions and after they have become a red giant during their helium-burning phase, they will shed their outer layers to form a planetary nebula, leaving behind an inert core consisting mostly of carbon and oxygen....
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- Interview with Dmitri Titov about the European Venus Express Mission
- Venus
- Black Holes
- Terrestrial Planet Finder (TPF)
- Interview with the Planet Hunter Geoff Marcy
Onkar Bhandare
on
04/02/2010 07:12:09
7. Einstein's special theory of relativity says that nothing in this universe can travel greater than speed of light. so what's the use even you ...
admin
on
03/11/2009 16:17:09
Hello Brian H. The problem was caused by a new CMS with a new database. I set the date manually back.
Brian H
on
03/11/2009 15:08:05
Deceptive dating on this. Nominally March '09, but Titov refers to a decision at the end of '07 as the future. So this info ...
gabrien.
on
13/09/2009 22:14:09
I want to see more pictures of Jupiter. My name is Gabrien William Deutsch and I'm 6 years old and love astronomy.
aaron
on
12/07/2009 12:13:41
i like 9 planets