Astronomer Pieter van Dokkum and colleagues wanted to know more about how these huge, star sparse structures worked, but detailed observations of this galaxy recently published in Nature were odd ...

Detailed dark matter map yields clues to galaxy cluster growth Date: November 12, 2010 Source: Space Telescope Science Institute (STScI) Summary: Astronomers using NASA's Hubble Space Telescope ...

If astronomers really have found an "undark" galaxy, it’s a strong clue that dark matter is real.

Detailed dark matter map yields clues to galaxy cluster growth The result suggests that galaxy clusters may have formed earlier than expected, before the push of dark energy inhibited their growth.

Millions of light-years from Earth, there’s a galaxy that is completely devoid of dark matter — the mysterious, unseen material that is thought to permeate the Universe.

The galaxy NGC 1277, located roughly 240 million light-years from here, has several times the mass of the Milky Way and should be comprised of between 10% and 70% dark matter.

Using the Hubble Space Telescope and a cosmic magnifying glass effect, astronomers have put together one of the most detailed maps yet of dark matter in a giant galaxy cluster. Dark matter is the ...

A neighbor galaxy of the Milky Way could offer fresh clues in the 90-year-long quest to determine the nature of dark matter.

Scientists have just made an incredible discovery—a possible dark matter star right in our own galaxy! Unlike normal stars, this one might be powered by mysterious dark matter instead of nuclear ...

Dark matter ‘galaxy’ may be holding four stars together beyond the edge of the Milky Way DON’T look now. There’s an entire invisible galaxy lurking right next door. We can’t see it. But ...

Day 9 of the 2024 Space Telescope Advent Calendar: a dark and dusty galaxy. This Hubble view of NGC 1546, a spiral galaxy about 50 million light-years away, provides good view of dust lanes from ...

Astronomers have untangled a messy collision between two massive clusters of galaxies in which the clusters' vast clouds of dark matter have decoupled from the so-called normal matter.