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  1. Gravitational waves are caused by calamitous events in the Universe. Neutron stars that finally merge after circling each other for a long time can create them, and so can two black holes that collide with each other. But sometimes there’s a burst of gravitational waves that doesn’t have a clear cause. One such burst was …

    The post A Mysterious Burst of Gravitational Waves Came From a Region Near Betelgeuse. But There’s Probably No Connection appeared first on Universe Today.

  2. Dark matter has long been one of the most mysterious things in the cosmos. It was first proposed in the 1930s as an idea to address stellar motion in some galaxies. The first solid evidence of dark matter was gathered by Vera Rubin, who studied the rotational motion of galaxies. The motion of these galaxies …

    The post The Debate Over Cold Dark Matter Warms Up As Astronomers Take Its Temperature appeared first on Universe Today.

  3. The European Space Agency is looking to recruit amateur astronomers to help characterize possible secondary targets for the upcoming Hera asteroid rendezvous mission.

    The post ESA Recruits Amateur Astronomers Ahead of Hera Asteroid Mission appeared first on Universe Today.

  4. Astronomers at Caltech’s Zwicky Transient Facility (ZTF) have discovered an asteroid that orbits inside Venus. Though other asteroids have a portion of their orbit inside Venus’, this is the first one with an orbit that is completely inside Venus’ orbit. The new object is named 2020 AV2. 2020 AV2 is a member of a small …

    The post An Asteroid has been Found that Orbits the Sun Closer than Venus appeared first on Universe Today.

  5. Confucius said, “Everything has beauty, but not everyone sees it.”   When it comes to Jupiter, Gerald Eichstädt and Seán Doran can certainly see it. And lucky for us, they have the skill to bring that beauty to the fore for the rest of us to enjoy. The Juno spacecraft’s JunoCam instrument takes raw unprocessed photos …

    The post Another Beautiful Image of Jupiter from Juno During a Flyby. Great Work by Gerald Eichstadt and Sean Doran appeared first on Universe Today.

  6. A new study has shown that optimal global satellite coverage can be achieved with just four satellites, and in a very cost-effective way.

    The post Scientists Figure Out How to Continuously Watch the Entire Planet With Just 4 Satellites appeared first on Universe Today.

  7. A new image from the ESA’s Mars Express spacecraft shows how beautiful, and desolate, Mars can appear. It also highlights some of the natural process that shape the planet’s surface. The image is of the northern polar region, and it features bright patches of ice, deep dark troughs, and evidence of storms and strong winds. …

    The post Beautiful Image of Ice at Mars’ Northern Polar Cap appeared first on Universe Today.

  8. Astronomers have discovered another candidate exoplanet orbiting our neighbor, Proxima Centauri. A paper announcing these results was just published in the journal Science Advances. If confirmed, it will be the second exoplanet orbiting the star. It was big news in 2016 when astronomers discovered a planet orbiting Proxima Centauri (PC,) the nearest star to our …

    The post A Second Planet May Have been Found Orbiting Proxima Centauri! And it’s a Super Earth. appeared first on Universe Today.

  9. A new study by researchers from the University of Warwick shows how Gamma Ray Bursts can only occur with binary systems.

    The post It Takes Two Stars to Make a Gamma Ray Burst appeared first on Universe Today.

  10. The Woods Hole Oceanographic Institution (WHOI) says their underwater robot has just completed the first-ever automated underwater sampling operation. The robot is called Nereid Under Ice (NEI) and it collected the sample in Greece. WHOI is developing Nereid in association with NASA’s Planetary Science and Technology from Analog Research (PSTAR) program. NUI is a little …

    The post Underwater Robot Captures its First Sample 500 Meters Below the Surface of the Ocean appeared first on Universe Today.

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