Institute of Astronomy

Astronomy News

Astronomers detect hot gas bubble swirling around the Milky Way’s supermassive black hole

23 September 2022 - 11:52am
Using the Atacama Large Millimeter/submillimeter Array (ALMA), astronomers have spotted signs of a ‘hot spot’ orbiting Sagittarius A*, the black hole at the centre of our galaxy. The finding helps us better understand the enigmatic and dynamic environment of our supermassive black hole.

A fast radio burst source at a complex magnetized site in a barred galaxy

22 September 2022 - 9:45am

Nature, Published online: 21 September 2022; doi:10.1038/s41586-022-05071-8

Analysis of a set of 1,863 bursts from the repeating source FRB 20201124A provides evidence of a complicated magnetized site within about an astronomical unit from the source in a barred galaxy.

New Webb Image Captures Clearest View of Neptune’s Rings in Decades

22 September 2022 - 9:44am
Portal origin URL: New Webb Image Captures Clearest View of Neptune’s Rings in DecadesPortal origin nid: 482884Published: Wednesday, September 21, 2022 - 08:00Featured (stick to top of list): noPortal text teaser: NASA’s James Webb Space Telescope shows off its capabilities closer to home with its first image of Neptune.Portal image: Neptune, opalescent with greenish-white rings, and Triton, a bright point with six turquoise diffraction spikes.

Hubble Captures a Starry Scene

19 September 2022 - 12:40pm
Portal origin URL: Hubble Captures a Starry ScenePortal origin nid: 482790Published: Friday, September 16, 2022 - 08:00Featured (stick to top of list): noPortal text teaser: A glittering multitude of stars in the globular cluster Terzan 4 fills this image from the NASA/ESA Hubble Space Telescope.Portal image: reddish-gold fill the scene, bright blue-white stars dot the scene, bright white stars fill the center of the image

Astronomy Photographer of the Year: 'Once in a lifetime' picture of comet wins award

16 September 2022 - 11:59am

Winning images of the mysterious and beautiful parts of our Universe are on display in London.

Frank Drake (1930–2022)

16 September 2022 - 11:59am

Nature, Published online: 15 September 2022; doi:10.1038/d41586-022-02962-8

Radioastronomer who hunted for alien signals and penned the eponymous equation.

How Saturn got its tilt and its rings

16 September 2022 - 11:57am
Science, Volume 377, Issue 6612, Page 1264-1265, September 2022.

Loss of a satellite could explain Saturn’s obliquity and young rings

16 September 2022 - 11:57am
Science, Volume 377, Issue 6612, Page 1285-1289, September 2022.

Giant stars turn to theft to snag jumbo planets

15 September 2022 - 10:19am

Nature, Published online: 13 September 2022; doi:10.1038/d41586-022-02909-z

Jupiter-sized planets orbiting massive stars were probably stolen from other stars or captured from somewhere else.

Hubble Studies a Spectacular Spiral

15 September 2022 - 10:17am
Portal origin URL: Hubble Studies a Spectacular SpiralPortal origin nid: 482716Published: Wednesday, September 14, 2022 - 08:00Featured (stick to top of list): noPortal text teaser: The galaxy NGC 1961 unfurls its gorgeous spiral arms in this newly released image from NASA’s Hubble Space Telescope.Portal image: bright spiral galaxy fills the scene. Dark reddish-brown dust lanes bisect the spiral arms. Bright blue stars are dotted troughout.

NASA's Hubble Finds Spiraling Stars, Providing Window into Early Universe

10 September 2022 - 8:32pm
Portal origin URL: NASA's Hubble Finds Spiraling Stars, Providing Window into Early UniversePortal origin nid: 482573Published: Thursday, September 8, 2022 - 10:00Featured (stick to top of list): noPortal text teaser: Researchers find the spiral may be feeding star formation in a nearby stellar nurseryPortal image: Bright-white stars in a cloud of blue. Superimposed on the scene is a red spiral.

Hubble Sees Two Overlapping Galaxies

10 September 2022 - 8:32pm
Portal origin URL: Hubble Sees Two Overlapping GalaxiesPortal origin nid: 482590Published: Friday, September 9, 2022 - 08:00Featured (stick to top of list): noPortal text teaser: The NASA/ESA Hubble Space Telescope imaged these two overlapping spiral galaxies named SDSS J115331 and LEDA 2073461, which lie more than a billion light-years from Earth.Portal image: center of image holds two spiral galaxies. The foreground galaxy is face-on, while the one behind it is at a slight angle. Both appear yellow-gold with streams of bright white stars.

Three types of planets orbit red dwarfs

10 September 2022 - 8:31pm
Science, Volume 377, Issue 6611, Page 1156-1157, September 2022.

Rapid quasi-periodic oscillations in the relativistic jet of BL Lacertae

8 September 2022 - 10:48am

Nature, Published online: 07 September 2022; doi:10.1038/s41586-022-05038-9

Analysis of the optical and γ-ray flux monitoring of the blazar BL Lacertae during its outburst in 2020 shows the existence of quasi-periodic oscillations in the relativistic jet with cycles as short as 13 h.

‘Chameleon’ model of dark energy fails to reveal itself

8 September 2022 - 10:48am

Nature, Published online: 07 September 2022; doi:10.1038/d41586-022-02774-w

Delicate laboratory experiment turns up no evidence for one possible explanation of the accelerating expansion of the Universe.

DART Sets Sights on Asteroid Target

8 September 2022 - 10:47am
Portal origin URL: DART Sets Sights on Asteroid TargetPortal origin nid: 482586Published: Wednesday, September 7, 2022 - 13:00Featured (stick to top of list): noPortal text teaser: NASA’s Double Asteroid Redirection Test (DART) spacecraft recently got its first look at Didymos, the double-asteroid system that includes its target, Dimorphos.Portal image: Image of the light from asteroid Didymos and its orbiting moonlet Dimorphos is a composite of 243 images taken by the Didymos Reconnaissance and Asteroid Camera for Optical navigation (DRACO) on July 27, 2022.

A Cosmic Tarantula, Caught by NASA’s Webb

7 September 2022 - 10:04am
Portal origin URL: A Cosmic Tarantula, Caught by NASA’s WebbPortal origin nid: 482557Published: Tuesday, September 6, 2022 - 08:08Featured (stick to top of list): noPortal text teaser: Nicknamed the Tarantula Nebula for the appearance of its dusty filaments in previous telescope images, the nebula has long been a favorite for astronomers studying star formation. In addition to young stars, Webb reveals distant background galaxies, as well as the detailed structure and composition of the nebula’s gas and dust.Portal image: Swirling reds, whites, and light yellows mix around in front of a starry sky.

Identification of carbon dioxide in an exoplanet atmosphere

5 September 2022 - 10:05am

Nature, Published online: 02 September 2022; doi:10.1038/s41586-022-05269-w

Identification of carbon dioxide in an exoplanet atmosphere

Hubble Observes a Glittering Gathering of Stars

5 September 2022 - 10:04am
Portal origin URL: Hubble Observes a Glittering Gathering of StarsPortal origin nid: 482505Published: Friday, September 2, 2022 - 08:00Featured (stick to top of list): noPortal text teaser: This glittering gathering of stars is the globular cluster NGC 6558, and it was captured by the NASA/ESA Hubble Space Telescope’s Advanced Camera for Surveys.Portal image: bright cluster of blue-white stars at left center. frame filled with red, reddish-gold, blue, and blue-white stars