Changing-look events observed in the galaxy NGC 5273

Astronomers have analyzed new and archival multiwavelength observations of the active galaxy NGC 5273. As a result, they detected so-called "changing-look" events in the active galactic nucleus of this galaxy. The finding ...

ALMA observatory in Chile targeted by cyberattack

The ALMA space telescope in the Chilean Andes suffered a cyberattack over the weekend that has downed its website and suspended its work, the observatory announced Wednesday.

Cat's Eye Nebula seen in 3D

Researchers have created the first computer-generated three-dimensional model of the Cat's Eye Nebula, revealing a pair of symmetric rings encircling the nebula's outer shell. The rings' symmetry suggests they were formed ...

Mars is mighty in first Webb observations of Red Planet

NASA's James Webb Space Telescope captured its first images and spectra of Mars Sept. 5. The telescope, an international collaboration with ESA (European Space Agency) and CSA (Canadian Space Agency), provides a unique perspective ...

Hubble gazes at a star-studded skyfield

This star-studded image from the NASA/ESA Hubble Space Telescope shows the heart of the globular cluster NGC 6638 in the constellation Sagittarius. The star-strewn observation highlights the density of stars at the heart ...

Astronomy data and the search for habitable worlds

In 1610, Galileo Galilei peered through a telescope and observed, "I have seen Jupiter accompanied by three fixed stars, totally invisible by their smallness. The planets are seen very rotund, like little full moons." In ...

page 4 from 14