Will two rare supernovas finally tell us how fast the universe is expanding? Perhaps, but we'll have to wait for it for them ...

In this video I show you what it actually looks like to drop different things into a black hole! I talk about gravitational lensing, gravitational time dilation and gravitational red shifting. All of ...

Published in Nature Astronomy, the study details how Webb's infrared instruments charted nearly 800,000 galaxies in the COSMOS field. The data reveal how dark matter – ...

For most of the past century, wormholes sat comfortably in the realm of science fiction, a mathematical curiosity that let ...