Despite being 3,400 times the mass of the sun and just 300 light-years away, the hydrogen cloud had gone unnoticed until now.

It's named Eos, after the Greek goddess of the dawn, and contains approximately 3,400 solar masses worth of gas.

On the night side of Jupiter, an infrared glow high up in the atmosphere ... information for the detection of dark matter on other planets outside the Solar System. "We have pointed out and ...

A giant object that has been lurking in the relative galactic vicinity of the Solar System this entire time has just been ...

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