by Deborah Byrd, EarthSky
A team of astronomers has produced a 3D map of our galaxy, the 1st accurate one, they say. It reveals our galaxy’s true shape as warped and twisted.
We think of spiral galaxies as being flat. You often hear the disk of our galaxy described as “flat as a pancake.” The large spiral galaxy next door – the Andromeda galaxy – looks flat through a telescope. But nature can be intricate, and, this week (February 4, 2019), astronomers made a surprising announcement. They said our home galaxy, the Milky Way, isn’t flat. Instead it’s warped and twisted.
Continue reading Our Milky Way is warped
Astronomers using ALMA have detected various complex organic molecules around the young star V883 Ori. A sudden outburst from this star is releasing molecules from the icy compounds in the planet forming disk. The chemical composition of the disk is similar to that of comets in the modern Solar System. Sensitive ALMA observations enable astronomers to reconstruct the evolution of organic molecules from the birth of the Solar System to the objects we see today.
Continue reading Retreating Snow Line Reveals Organic Molecules around Young Star
by Michelle Starr, Science Alert
The peculiar movement of gas at the galactic center could be the smoking gun that finally leads astronomers to the most elusive type of black hole – the middleweight.
Continue reading Astronomers Have Found Evidence of a Big Black Hole Wandering Our Galaxy
by Michelle Starr, Science Alert
For only the second time, astronomers have picked up a mysterious repeating signal coming from an unknown source in space.
They’re called fast radio bursts. And in less than the blink of an eye, they ping into the data collected by radio telescopes out of nowhere, with as much energy as a hundred million Suns.
Continue reading Mysterious Repeating Signals Have Been Detected Coming From Space For The Second Time
by Joel Hruska, ExtremeTech
Stars are thought to form inside giant molecular clouds of gas, sometimes with diameters hundreds of light years across, with a combined mass equivalent to millions of solar masses. As these clouds collapse, they form fragments. Said fragments are thought to contain the mass that will become both the star and its protoplanetary disc, though there are opportunities for interactions with other nearby clouds. If an aged star near a stellar nursery goes supernova, for example, heavier elements created by the core collapse may form part of the new stars. A nearby supernova can even trigger the formation of new stars when its shock wave sharply compresses the molecular gas cloud.
Continue reading Astronomers Caught a Star Forming Just Like a Planet
by BadAstro, Disclose.tv
Planetologists have obtained detailed photos of the areas in space in which, from a hypothetical point of view, the mysterious ninth rogue planet of the solar system is located.
According to US astronomer Michael Brown, the photographs will help to discover the giant planet.
Continue reading “Planet X”: Astronomers are about to locate the mysterious celestial body
by Dave Mosher, Science Alert
It was hiding behind the Milky Way.
Through the thick fog of our own galaxy, astronomers have spotted an ultimate prize: one of the largest-known structures in the Universe.
Called the Vela super-cluster, the newly discovered object is a massive group of several galaxy clusters, each one containing hundreds or thousands of galaxies. Continue reading Astronomers have discovered one of the most massive objects in the universe