ALMA Observatory

A Star Became 1,000 Times Brighter, and Now Astronomers Know Why

Astronomers were surprised in 1937 when a star in a binary pair suddenly brightened by 1,000 times. The pair is…

2 days ago

If Europa has Geysers, They’re Very Faint

In 2013, the Hubble Space Telescope spotted water vapour on Jupiter's moon Europa. The vapour was evidence of plumes similar…

1 month ago

Astronomers Propose a 50-Meter Submillimeter Telescope

Some parts of the Universe only reveal important details when observed in radio waves. That explains why we have ALMA,…

2 months ago

Astronomers Image 62 Newly-Forming Planetary Systems

Astronomers using the Very Large Telescope in Chile have now completed one of the largest surveys ever to hunt for…

2 months ago

Astronomers See Massive Stars Forming Together in Multiple Star Systems

All stars form in giant molecular clouds of hydrogen. But some stars are extraordinarily massive; the most massive one we…

4 months ago

The Youngest Planetary Disks Ever Seen

How long does planet formation take? Maybe not as long as we thought, according to new research. Observations with the…

4 months ago

Young Stars in the Outskirts of Galaxies Finally Have an Explanation

Star formation is well understood when it happens in the populous centers of galaxies. From our vantage point on Earth,…

4 months ago

The Oldest Known Spiral Galaxy Has Ripples Like the Surface of a Pond

Astronomers have detected pond-like ripples across the gaseous disk of an ancient galaxy. What caused the ripples, and what do…

5 months ago

ALMA Takes Next-Level Images of a Protoplanetary Disk

The ESO's Atacama Large Millimeter/submillimeter Array (ALMA) is perched high in the Chilean Andes. ALMA is made of 66 high-precision…

6 months ago

Sometimes Compact Galaxies Hide Their Black Holes

Quasars, short for quasi-stellar objects, are one of the most powerful and luminous classes of objects in our Universe. A…

6 months ago