This Hubble Wide Field Camera 3 image demonstrates the immense effects of gravity; more specifically, it shows the effects of gravitational lensing caused by a galaxy cluster called SDSS J1152+3313.

The gravitational lens JVAS B1938+666 consists of massive bodies ranging from 6.5 billion to 11 billion light-years away, ...

By studying how light from eight distant quasars is gravitationally lensed as it propagates towards Earth, astronomers have ...

Astronomers used a cosmic lens to reveal a hyperactive protocluster. ALMA and VLA observations uncover tightly packed ...

Let's turn the sun into a telescope. In fact, we don't have to do any work—we just have to be in the right spot. But how can the sun be a telescope? The sun is not a mirror, but it is a lens. And we ...

There may not be as nearly as many small galaxies in the early universe as astronomers predict there should be, which has big ...

Overlay of the infrared emission (black and white) with the radio emission (colour). The dark, low-mass object is located at ...

The vast majority of matter is dark – invisible until it is detected only through its gravitational effects. The newly discovered object could be a clump of dark matter, or it could also be a compact, ...

The European Space Agency has released the first major batch of data from its “dark universe” telescope Euclid. What’s inside could change our understanding of dark matter and the expansion of the ...

object like a bright quasar hidden behind it. But there has been a persistent mystery for over 20 years: Einstein’s general theory of relativity predicts there should be an odd number of images, yet ...

The most powerful telescope to be launched into space has made history by detecting a record number of new stars in a distant galaxy. NASA's James Webb Space Telescope, history's largest and most ...

The team's findings, which were published Monday in the journal Nature, also unveil a method of investigating dark matter, which remains one of the universe's greatest mysteries. Astronomers setting ...