New observations show a star that blew up in two separate bursts, confirming a long-suspected cosmic phenomenon called a ...

Captured just days after its discovery, the images offer the clearest view yet of this rare visitor from beyond our solar system.

The double star system is called HD 135344 AB and it's about 440 light-years away from Earth. A and B are both young stars, ...

The European Southern Observatory's Very Large Telescope (ESO-VLT) has captured clear images of 3I/ATLAS, a fast-moving interstellar comet that the Sun's gravity can't slow down.

But in the past two decades, new types of black holes have been seen and astronomers are beginning to understand how they ...

Tony Tyson’s cameras revealed the universe’s dark contents. Now, with the Rubin Observatory’s 3.2-billion-pixel camera, he’s ...

Imagine a space telescope with a mirror stretching 50 meters across! That's larger than the width of a U.K. soccer field and ...

A giant gas planet comparable in size to Saturn exists around a small red dwarf star. The discovery is beyond the scope of ...

The European Space Agency said Wednesday that scientists have discovered what might be only the third known interstellar ...

The awe-inspiring distances of the cosmos are hard to visualise, so how can we be certain we are measuring them correctly?