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Nov 29, 2017

structures visible in the featured image are actually shock waves - fronts where fast moving material encounters slow moving gas. The Orion Nebula spans about 40 light...

Jun 27, 2021

. Once made, some movies clearly show that Saturnian auroras can change not only with the angle of the Sun, but also as the planet rotates. Furthermore, some auroral...

Jan 29, 2010

or "Compton Scattering for pool players" How do galaxy clusters perturb the CMBR? It's through a process physicists call Compton scattering. To understand how how...

Mar 7, 2018

speeds of hundreds of kilometers per second. The interaction creates luminous shock waves known as Herbig-Haro (HH) objects. For example, the graceful, flowing arc just...

Solar System, Mars
Jun 21, 2018

have a pattern or are they randomly located? When a quake occurs on a planet, it releases waves of energy that bounce throughout the interior of that planet. The waves...

Jun 8, 2019

be captured in the sea and night skyscape from Big Sur, planet Earth. Its central bulge near the southwestern horizon, the Milky Way runs through the scene too, while the...

Feb 3, 2019

was created by atmospheric gravity waves, ripples of alternating air pressure that can grow with height as the air thins, in this case about 90 kilometers up. Unlike...

May 15, 2020

go-round lasted about 100 million years and likely raised density waves rippling around M81, resulting in the richness of M81's spiral arms. M82 was left with violent...

Oct 5, 2020

core of this active galaxy glows brightly in radio waves and X-rays where twin jets have been found. An unusual central glow makes M106 one of the closest examples of...

Sep 20, 2021

. MS-PS2-4 Middle School 6-8 Develop and use a model to describe that waves are reflected, absorbed, or transmitted through various...

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