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Hubble Celebrates 34th Anniversary With A Look At The Little Dumbbell Nebula

Hubble Celebrates 34th Anniversary With A Look At The Little Dumbbell Nebula
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Maryland , United-states , Baltimore , Space-telescope-science-institute-in-baltimore , Hubble-space-telescope , Little-dumbbell-nebula , Mikulski-archive , Space-telescopes , Space-telescope-science-institute , Webb-space-telescope ,

Hubble Celebrates 34th Birthday with Brilliant Image of Messier 76

Hubble Celebrates 34th Birthday with Brilliant Image of Messier 76
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Space-telescope-science-institute , Little-dumbbell-nebula , Space-telescope , Mikulski-archive , Space-telescopes , Solar-system ,

Hubble celebrates 34th anniversary with a look at the little dumbbell nebula

Hubble celebrates 34th anniversary with a look at the little dumbbell nebula
phys.org - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from phys.org Daily Mail and Mail on Sunday newspapers.

Maryland , United-states , Baltimore , Space-telescope-science-institute-in-baltimore , Hubble-space-telescope , Little-dumbbell-nebula , Mikulski-archive , Space-telescopes , Space-telescope-science-institute , Webb-space-telescope ,

1.55 R⊕ habitable-zone planet hosted by TOI-715, an M4 star near the ecliptic South Pole | Monthly Notices of the Royal Astronomical Society

1.55 R⊕ habitable-zone planet hosted by TOI-715, an M4 star near the ecliptic South Pole | Monthly Notices of the Royal Astronomical Society
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Menou , Bourgogne , France , South-korea , Belgium , Paris , France-general- , Argentina , Germany , La-silla , Valparaí , Chile

What we know about the stars where NASA will hunt for life

Scientists have analysed the stars that an upcoming NASA telescope will target in its search for biosignatures, narrowing down the candidates for those that could host potential alien life

Habitable-worlds-observatory , James-webb-space , Stars , Alien-life , Space-telescopes , Universe ,

What we know about the stars where NASA will hunt for alien life

Scientists have analysed the stars that an upcoming NASA telescope will target in its search for biosignatures, narrowing down the candidates for those that could host potential extraterrestrial life

Habitable-worlds-observatory , James-webb-space , Stars , Alien-life , Space-telescopes , Universe ,

Stream–disk shocks as the origins of peak light in tidal disruption events

Tidal disruption events (TDEs) occur when stars are ripped apart1,2 by massive black holes and result in highly luminous, multi-wavelength flares3–5. Optical–ultraviolet observations5–7 of TDEs contradict simple models of TDE emission2,8, but the debate between alternative models (for example, shock power9,10 or reprocessed accretion power11–16) remains unsettled, as the dynamic range of the problem has so far prevented ab initio hydrodynamical simulations17. Consequently, past simulations have resorted to unrealistic parameter choices10,12,18–21, artificial mass injection schemes22,23 or very short run-times24. Here we present a three-dimensional radiation-hydrodynamic simulation of a TDE flare from disruption to peak emission, with typical astrophysical parameters. At early times, shocks near pericentre power the light curve and a previously unknown source of X-ray emission, but circularization and outflows are inefficient. Near peak light, stream–disk shocks efficiently circularize returning debris, power stronger outflows and reproduce observed peak optical–ultraviolet luminosities25,26. Peak emission in this simulation is shock-powered, but upper limits on accretion power become competitive near peak light as circularization runs away. This simulation shows how deterministic predictions of TDE light curves and spectra can be calculated using moving-mesh hydrodynamics algorithms. A three-dimensional radiation-hydrodynamic simulation of a tidal disruption event (TDE) flare from disruption to peak emission shows how deterministic predictions of TDE light curves and spectra can be calculated using moving-mesh hydrodynamics algorithms.

Monte-carlo , Ja-jr-cummings , Ultraviolet-transient-astronomy-satellite , Space-telescopes , Gamma-ray , Tidal-disruption-events , Realistic-structures , Softx-ray , Star-ingesting-luminosity , Intermediate-mass-black-holes ,

Reading the Stars - When Spectroscopy Boosts Exoplanet Research

In this article, LightMachinery details how spectroscopy can be used to identify the biosignature of an exoplanet, drastically advancing research in the field.

Netherlands , United-states , American , Holland , Le-coarer , Allende-prieto , Louis-castel , Gonzalez-abad , Sofer-rimalt , Astronomische-nachrichten , David-herraez-calzada-shutterstock , Society-of-photo

'Teenage galaxies' are unusually hot, glowing with unexpected elements

'Teenage galaxies' are unusually hot, glowing with unexpected elements
sciencedaily.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from sciencedaily.com Daily Mail and Mail on Sunday newspapers.

Allison-strom , Gwen-rudie , Cecilia-payne-gaposchkin , Northwestern-center , Research-corporation-for-scientific-advancement , Northwestern-weinberg-college-of-arts , Lines-in-interstellar-aurorae , Space-telescope-science-institute , Research-in-astrophysics , Pittsburgh-foundation , Northwestern-university-led , Chemical-evolution-constrained

Hot, Glowing Teenage Galaxies Surprise with Unexpected Elements

Hot, Glowing Teenage Galaxies Surprise with Unexpected Elements
miragenews.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from miragenews.com Daily Mail and Mail on Sunday newspapers.

Allison-strom , Gwen-rudie , Cecilia-payne-gaposchkin , Lines-in-interstellar-aurorae , Northwestern-weinberg-college-of-arts , Northwestern-center , Space-telescope-science-institute , Pittsburgh-foundation , Research-in-astrophysics , Research-corporation-for-scientific-advancement , Northwestern-university-led , Chemical-evolution-constrained