University of Sydney astronomers, working with international colleagues, have found a star system like none seen before in our galaxy. Scientists believe that one of the stars — about 8,000 light-years from Earth — is the first known candidate in the Milky Way to produce a dangerous gamma-ray burst, among the most energetic events in ...
In November 2017, scientists pointed NASA’s Spitzer Space Telescope toward the object known as ‘Oumuamua — the first known interstellar object to visit our solar system. The infrared Spitzer was one of many telescopes pointed at ‘Oumuamua in the weeks after its discovery that October. ‘Oumuamua was too faint for Spitzer to detect when it looked more ...
Mercury, the smallest planet in our solar system, is reportedly shrinking. It is estimated that the planet’s diameter has contracted by almost 14 kilometers since it was first formed almost 4 billion years ago. Mercury, a shrinking planet Earth’s massive mountains and steep cliffs are said to be the result of colliding tectonic plates. But ...
The presence of water on early Mars has been theorized for centuries. Early telescopes revealed ice caps, and early astronomers noted channels that were hypothesized to be natural rivers or creature-created canals. Over the past two decades, rovers Sojourner, Spirit, Opportunity, and Curiosity have sent back invaluable data to scientists who are trying to interpret ...
Some 10 billion years ago, the Milky Way merged with a large galaxy. The stars from this partner, named Gaia-Enceladus, make up most of the Milky Way’s halo and also shaped its thick disk, giving it its inflated form. A description of this mega-merger, discovered by an international team led by University of Groningen astronomer ...
If you’re standing in the Southern Hemisphere on a clear night, you can see two luminous clouds offset from the Milky Way. These clouds of stars are satellite galaxies of the Milky Way, called the Small Magellanic Cloud and the Large Magellanic Cloud, or SMC and LMC. Using newly released data from a new, powerful ...
Using its multipurpose camera designed at the UA, NASA’s OSIRIS-REx spacecraft spied its target asteroid for the first time from about 1.4 million miles away. How did the OSIRIS-REx spacecraft take the first image of the target asteroid Bennu? UANews spoke with three OSIRIS-REx mission scientists who planned the first-light image of Bennu: Bashar Rizk, senior staff scientist ...
Astronomers have detected radio jets belonging to a neutron star with a strong magnetic field — something not predicted by current theory, according to a new study published in Nature. The team, led by researchers at the University of Amsterdam, observed the object known as Swift J0243.6+6124 using the Karl G. Jansky Very Large Array radio ...
Australian researchers using a CSIRO radio telescope in Western Australia have nearly doubled the known number of “fast radio bursts” — powerful flashes of radio waves from deep space. The team’s discoveries include the closest and brightest fast radio bursts ever detected. Fast radio bursts come from all over the sky and last for just ...
Russia is developing a wide range of satellites to strengthen its military dominance in a potential space war — everything from a model capable of recording objects on the ground as small as 12 inches wide to ones that can be used as anti-satellite weapons from space. The new generation satellites Moscow is reportedly replacing ...
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