For over forty years, astronomers have been baffled by X-rays from the white dwarf at the center of the Helix Nebula. A white ...
The Helix Nebula, located 650 light-years from Earth, has baffled scientists for decades. The planetary nebula was created by ...
In anticipation of the upcoming 35th anniversary of the NASA/ESA Hubble Space Telescope, ESA/Hubble is kicking off the ...
The cluster, full of more than 2,500 newborn stars that blaze blue in the Hubble image, is in a galaxy with far fewer heavy chemical substances than the Milky Way. It's mostly made of hydrogen and ...