This gigantic image of the Triangulum Galaxy — also known as Messier 33 — is a composite of about 54 different pointings with Hubble's Advanced Camera for Surveys. With a staggering size of 34,372 x ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. Hubble Space Telescope image of the Triangulum Galaxy, also known as Messier 33, which is the ...

A vast, flat sheet of dark matter may solve the long-standing mystery of why our neighboring galaxy Andromeda is speeding ...

ESA’s Gaia satellite has looked beyond our galaxy and explored two nearby galaxies to reveal the stellar motions within them and how they will one day interact and collide with the Milky Way — with ...

The New Moon occurs on December 18 at 8:43 P.M. EST, providing optimal conditions for viewing deep-sky objects. The Triangulum Galaxy (M33), a 6th-magnitude spiral galaxy in western Triangulum, is ...

There's a 50% chance that the predicted head-on collision will end in a galactic merger, according to a new study. Reading time 2 minutes For decades, astronomers have predicted that, in approximately ...

While the appearance of Andromeda is not a once-in-a-lifetime event, it’s rare for someone to come across it at the right time and record it in a photograph.

Two nights ago I was out with a group under the sky at 11 o'clock. We were a good distance from city lights with dark sky all around. The W-shape of Cassiopeia stood high in the northeastern sky. I ...

WASHINGTON -- Our nearest major galactic neighbor is a cosmic cannibal. And it's heading this way eventually. Astronomers have long suspected Andromeda of being a space predator, consuming dwarf ...

The Triangulum Galaxy, the third-largest member of the Local Group of galaxies, is shining with star formation in a new image from the Hubble Space Telescope. When you purchase through links on our ...

Two possibilities emerged: either Triangulum is on an incredibly long six-billion-year orbit around Andromeda but has already fallen into it in the past, or it is currently on its very first infall.