Some historians believed that Native Americans recorded this event in cave paintings as well, but that theory was recently debunked. European astronomers didn't notice the fainter nebula until ...

For a while astronomers supported Kant, but later his “nebula hypothesis” lost scientific favor. More modern astronomers, notably Sir James Jeans, have conceded that the sun may have been ...

The image of the Serpens Nebula you see above ... outflows” visible in the top left support a longstanding theory. As suspected, the jets shoot out in alignment from the swirling disks of ...

Hubble Telescope image of the Horsehead Nebula. Credit: T.A.Rector (NOIRLab/NSF/AURA) & Hubble Heritage Team (STScI/AURA/NASA ...

Through a telescope, they make the most jaw-dropping beauty shots. But what is a nebula in the first place? Have you ever wondered where nebulae come from, or what they're made of? If so ...