A team of astronomers were studying GRS 1716-249, an object believed to host a black hole. A wind of gas flowing out of it can be seen in visible light, making it the sixth object of its class to have shown this feature till date.
Baryon acoustic oscillations, an artifact remaining from the Big Bang, can be used by scientists to measure cosmological distances regardless of how the distances are changing. Soon after the Big Bang, the beginning of our universe, all of the matter of the universe was packed densely into a much smaller space. The…
1.76 billion light years away, two black holes smashed into one another, bearing one huge black hole the size of 53 suns. The explosion from this merger created enormous distortions in spacetime, known as gravitational waves. These gravitational ripples have been flying through the universe, and finally visited Earth.…
Jacob Haqq-Misra, Ravi Kopparapu, and Eric Wolf attempt to address this question in a recent paper titled "Why do we find ourselves around a yellow star instead of a red star?" and published in International Journal of Astrobiology.
Large stars and planets in space have intense gravity. The gravity of these large celestial bodies is so strong, that they actually warp the empty space around them. Also, in space, time progresses differently when near celestial bodies. Because of these effects on space and time, space is regarded as a space-time…