Hubble telescope's observations exploring the evolution of local spiral galaxies

From - Gemes Webb Space Telescope,

Edited by - Amal Udawatta,

Here we have some brand new images of the Phantom Galaxy, M74 taken by a tag team of Hubble and Webb. Left is an image at optical wavelengths from Hubble Space Telescope , with the right hand image being James Webb Space Telescope 's infrared view of the same galaxy. In the centre is the astonishing composite of the two. The image is part of Webb's picture of the month series. 

Hubble's image of M74 comes from a set of observations exploring the evolution of local spiral galaxies such as M74 with the aim of gaining insights into the history of star formation in these spirals. Webb gazed into M74 with its Mid-InfraRed Instrument (MIRI) revealing delicate filaments of gas and dust in M74's grandiose spiral arms. M74 is a particular class of spiral galaxy known as a ‘grand design spiral’, meaning that its spiral arms are prominent and well-defined, unlike the patchy and ragged structure seen in some spiral galaxies. Webb's images will enable astronomers to learn more about the earliest phases of star formation in the local Universe.

Hubble’s sharp vision at ultraviolet and visible wavelengths complements Webb’s unparalleled sensitivity at infrared wavelengths, as do observations from ground-based radio telescopes such as ALMA Observatory . By combining data from telescopes operating across the electromagnetic spectrum, scientists can gain greater insight into astronomical objects than by using a single observatory — even one as powerful as Webb!

Read more about this image at http://ow.ly/uf1M50KunLR

 ESA - European Space Agency James Webb Space Telescope NASA - National Aeronautics and Space Administration Canadian Space Agency STScI, J. Lee and the PHANGS-JWST Team; ESA - European Space Agency / Hubble Space Telescope / NASA - National Aeronautics and Space Administration , R. Chandar
Acknowledgement: J. Schmidt

Comments

Why did Homo sapiens outlast all other human species?

From - Live Science By Mindy Weisberger Edited by - Amal Udawatta Reproductions of skulls from a Neanderthal (left), Homo sapiens (middle) and Australopithecus afarensis (right) (Image credit: WHPics, Paul Campbell, and Attie Gerber via Getty Images; collage by Marilyn Perkins) Modern humans ( Homo sapiens ) are the sole surviving representatives of the human family tree , but we're the last sentence in an evolutionary story that began approximately 6 million years ago and spawned at least 18 species known collectively as hominins. There were at least nine Homo species — including H. sapiens — distributed around Africa, Europe and Asia by about 300,000 years ago, according to the Smithsonian's National Museum of Nat ural History in Washington, D.C. One by one, all except H. sapiens disappeared. Neanderthals and a Homo group known as the Denisovans lived alongside...

New Zealand loses first naval ship to sea since WW2

Aleks Phillips BBC New , Michael Bristow, BBC World Service Edited by - Amal Udawatta US Navy HMNZS Manawanui capsized after running aground off the coast of Samoa The Royal New Zealand Navy has lost its first ship to the sea since World War Two, after one of its vessels ran aground off the coast of Samoa. HMNZS Manawanui, a specialist diving and ocean imaging ship, came into trouble about one nautical mile from the island of Upolu on Saturday night local time, while conducting a survey of a reef. It later caught fire before capsizing. All 75 people on board were evacuated onto lifeboats and rescued early on Sunday, New Zealand's Defence Force said in a statement. Officials said the cause of the grounding was unknown and will be investigated. Reuters All 75 people on board have now safely been rescued The incident occurred during a bout of rough and windy weather. Military officials said rescuers "battled" currents and winds that pushed ...

Astronomers Find 21 “Dark” Neutron Stars Orbiting Sun-like Stars

from - Sky & Telescope By Monica Young Edited by - Amal Udawatta New analysis has revealed 21 Sun-like stars in mutual orbit around dark objects of neutron star–like masses — rare systems that have escaped destruction by supernova. Most massive stars are born with at least one stellar sibling. But as the massive ones of these groups mature, they wreak havoc on their families. Yet astronomers have found some that have survived this tumult. Before exploding as a supernova, a massive star expands, sometimes engulfing any stellar companions. Or, even if the companion avoids being swallowed up, it may yet end up on its own: The supernova imparts a kick on the crushed core of the massive star, causing the newborn neutron star to escape the system. Many of the thousands of neutron stars known in the Milky Way are alone. But in a new analysis of data from the European Space Agency’s Gaia mission, Kareem El-Badry (Caltech) and colleagues have found 21 survivors: “dark” neutron stars i...

Nature Hub

Search This Blog