A cat and lobster meet in space 8,000 light years away

A cat and lobster meet in space 8,000 light years away

A giant image of the Cat’s Paw Nebula and the Lobster Nebula meeting in space has been released by the European Southern Observatory. The two-billion-pixel image shows the two glowing clouds of gas and dust over distances of up to 8,000 light years. 19 days ago
Video diagram shows strong gravitational lensing effect

Video diagram shows strong gravitational lensing effect

Gravitational lensing is when objects with large masses such as galaxies or clusters of galaxies warp the spacetime surrounding them in such a way that they can create multiple images of background objects. 25 days ago