This celestial object looks like a delicate butterfly. But it is far from serene. What resemble dainty butterfly wings are actually roiling cauldrons of gas heated to more than 36,000 degrees Fahrenheit. The gas is tearing across space at more ...

Astronomers have discovered a new class of stellar explosions that are larger than a regular nova but not quite as large as a supernova. The researchers speculate the event is the result from the merger of two ordinary stars 49 ...