astronomers

An international team of astronomers has shown that the two stars in the binary HM Cancri definitely revolve around each other in a mere 5.4 minutes.

This makes HM Cancri the binary star with by far the shortest known orbital period. It is also the smallest known binary.

Astronomers have found the astronomical equivalent of prehistoric life in our intergalactic backyard: a group of small, ancient galaxies that has waited 10 billion years to come together.

These "late bloomers" are on their way to building a large elliptical galaxy.

(Astronomy & Astrophysics) Astronomy & Astrophysics is publishing new 3-D maps of the interstellar gas in the local area around our sun.

A French-American team of astronomers presents new absorption measurements towards more than 1800 stars.

They were able to characterize the properties of the interstellar gas within each sight line.

Astronomers have discovered a distant star that exploded when its center became so hot that matter and anti-matter particle pairs were created.

Astronomers have taken the deepest image yet of the Universe in near-infrared light. The faintest and reddest objects in the image are likely the oldest galaxies ever identified, having formed between only 600-900 million years after the Big Bang.

A ground-breaking census of 500 stars, 70 of which are known to host planets, has successfully linked the long-standing "lithium mystery" observed in the Sun to the presence of planetary systems.

Using ESO's successful HARPS spectrograph, a team of astronomers has found that sun-like stars that host planets have destroyed their lithium much more efficiently than "planet-free" stars.

Astronomers have tracked down a gigantic, previously unknown assembly of galaxies located almost seven billion light-years away from us.

The discovery, made possible by combining two of the most powerful ground-based telescopes in the world, is the first observation of such a prominent galaxy structure in the distant Universe, providing further insight into the cosmic web and how it formed.

Astronomers have found an unexpected link between mysterious 'dark matter' and the visible stars and gas in galaxies that could revolutionize our current understanding of gravity.

The finding suggests that an unknown force is acting on dark matter.

Astronomers have discovered multiple fragments ejected during the largest cometary outburst ever witnessed. Images and animations show fragments rapidly flying away from the nucleus of comet 17P/Holmes.

Astronomers searching for the perfect place for an observatory have established that a ridge in Antarctica is the calmest place on Earth.