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Dark Galaxies: What Happens When Stars Are Nearly Invisible

To dark matter and dark energy, add dark galaxies collections of stars so sparse and faint that they are all but invisible.

United statesCanary islandsSpain generalWest virginiaMireia montesKaren oneilAmerican astronomical societyGreen bank observatoryCanary islands institute of astrophysicsMilky wayNew orleansCanary islands instituteDark matterAstronomy and astrophysics journalYour feed science

A Famous Black Hole Gets a Second Look From Astronomers

Repeated studies of the supermassive black hole in the galaxy Messier 87 confirm that it continues to act as Einstein’s theory predicted it would.

Museum of modern artNew yorkUnited statesUnited kingdomHarvard smithsonianAlbert einsteinDominic changEvent horizon telescopeModern artEvent horizonYour feed scienceBlack holeMessier 87Astronomy and astrophysics journalSheperd doeleman

Titanium Clouds Engulf This Ultrahot Neptune-like Planet

A cosmic mirror of sorts, this planet is the first of its size and location to be discovered with an atmosphere.

James jenkinsGoddard space flight centerDiego portales universityExoplanet survey satelliteEuropean space agency cheopsEuropean space agencySpace telescopeKnicole colSpace flight centerJames webb space telescopesAstronomy and astrophysics journalYour feed scienceTelescopes observatories

Quaoar Had One Impossible Ring, Then Astronomers Found Two

Astronomers had already detected one unlikely ring around Quaoar, a small object far beyond Neptune’s orbit. Now they have found a second ring.

United statesLos angelesIndigenous tongvaSolar systemTelescopes observatoriesAstronomy and astrophysics journalYour feed science

The First Quadruple Asteroid: Astronomers Spot a Space Rock With 3 Moons

Astronomers had already spotted two other rocks orbiting the asteroid known as 130 Elektra, and think more quadruple systems are out there.

United kingdomAnthony berdeuAlan fitzsimmonsQueen university belfastNational astronomical research institute of thailandBin yangEuropean southern observatoryNational astronomical research instituteVery large telescopeUniversity belfastExtremely large telescopeSolar systemAstronomy and astrophysics journal

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