Helix Nebula: This a planetary nebula ... Messier 42 blazes brightly in the constellation Orion. This stellar nursery, is only 1,500 light-years away, making it the closest large star-forming ...

The Bubble Nebula is 7 light-years across and resides 7,100 light-years from Earth in the constellation Cassiopeia. The seething star forming this nebula is 45 times more massive than our Sun.

X-ray missions to better understand the Universe have been going on for decades now, and as soon as our species has begun looking at the stars this way, we've been flooded with mysteries.

The closest nebula to Earth is the Helix Nebula, which is about 700 light ... of a supernova remnant is the Crab Nebula, found in the constellation of Taurus. Sometime between April and June ...

The fuzzy, roundish "star" to the upper left of the bright star Mirach in the constellation Andromeda ... Others, such as Caroline's Rose, Helix Nebula, and Triangulum Galaxy, are near-perfect ...

About 650 light-years from here, in the constellation Aquarius, lies the planetary nebula Caldwell 63, commonly known as the ...

NASA captured a stunning image of NGC 6826, also known as Caldwell 15, a planetary nebula in the Cygnus constellation. The Helix Nebula is a planetary nebula that appears like a bubble or an eye from ...

The Helix Nebula. Credit: X-ray ... as NGC7293 and is a planetary nebula located 650 light years away in the constellation Aquarius. The nebula is the result of a dying star of similar mass ...

Orion Nebula, a huge, star-forming nebula in the constellation Orion is an example of emission nebula. It is home to a star cluster defined by four massive stars known as the Trapezium. The Helix ...

Decades of constant X-ray emission from the Helix Nebula’s white dwarf suggest debris from a Jupiter-sized planet steadily rains upon the star.