Stories tagged star

Each week, CNN posts a collection of space images. This week, you can see the green comet Lulin, thousands of satellites orbiting Earth, and some photos from the Hubble Space Telescope.

Lucy in the sky with diamonds
Lucy in the sky with diamondsCourtesy Travis Metcalfe and Ruth Bazinet, Harvard-Smithsonian Center for Astrophysics.

Just in time for Valentine's Day, astronomers discovered a star Feb. 13, 2004 that is thought to be a diamond crystal weighing 10 billion trillion trillion carats.

Click this link to learn more about Lucy, the star made out of diamond.


On March 19, there was a tremendous explosion in outer space. The massive gamma-ray burst was faintly visible to the naked eye, despite being 7.5 billion light years away. That’s half the distance across the Universe, and 1,000 times further than the previous record for most distant visible object. Gamma-ray bursts occur when giant stars run out of fuel and collapse, releasing huge amounts of energy.