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May 23, 2000

instantaneous bandwidth of an L-burst is very large, often greater than 5 MHz. L-bursts have a slow undulating quality that reminds many listeners of waves crashing on a...

Jul 9, 2020

These silvery blue waves washing over a tree-lined horizon in the eastern French Alps are noctilucent clouds. From high in planet Earth's mesosphere, they reflect sunlight...

Jan 21, 2017

Plunging close to the outer edges of Saturn's rings, on January 16 the Cassini spacecraft captured this closest yet view of Daphnis. About 8 kilometers across and orbiting...

Feb 22, 2017

What's happening to the rings of Saturn? Nothing much, just a little moon making waves. The moon is 8-kilometer Daphnis and it is making waves in the Keeler Gap of...

May 19, 2018

celestial conjunction of the two brightest beacons in the night sky could be enjoyed around the world. Seaside, light reflected by briefly horizontal surfaces of the gentle...

Jan 10, 2020

Vivid and lustrous, wafting iridescent waves of color filled this mountain and skyscape near Tanndalen, Sweden on January 3. Known as nacreous clouds or mother-of-pearl...

Sun
Feb 18, 2010

left the atmosphere," says SDO project scientist Dean Pesnell of the Goddard Space Flight Center. Moments after launch, SDO's Atlas V rocket flew past a sundog hanging...

Sun
Aug 10, 2016

  What is Electromagnetic energy? Electromagnetic energy travels in waves and spans a broad spectrum from very long radio waves to very short gamma rays. The human...

Earth
Jan 18, 2001

        Our planet is a natural source of radio waves at audio frequencies. An online receiver at the Marshall Space Flight Center is playing these...

Oct 13, 2018

Kona, a young boxer, is a dog who loves splashing in the waves along Solana Beach near San Diego, planet Earth. But he paused here, at least briefly, during an early evening...

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