Science

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Merger Partners? Maybe.

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Simulated image of two merging black holes, viewed face-on. LIGO has announced the detection of ten of these events from its first two observing runs.

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Forces Unleashed

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Forces Unleashed

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NASA Satellite Data Show 30 Percent Drop In Air Pollution Over Northeast U.S.

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The left image in the slider shows the average concentration in March of 2015-19, while the right image in the slider shows the average concentration measured in March of this year.

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New Images Reveal Fine Threads of Million-Degree Plasma Woven Throughout the Sun’s Atmosphere

Researchers at the University of Central Lancashire (UCLan) unveil highest-ever resolution images of the Sun from NASA’s solar sounding rocket mission

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Highest-ever resolution images of the Sun from NASA.

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In a First, NASA Measures Wind Speed on a Brown Dwarf

Not quite planets and not quite stars, brown dwarfs are cosmic in-betweeners. Learning about their atmospheres could help us understand giant planets around other stars.

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This artist's concept shows a brown dwarf, an object that is at least 13 times the mass of Jupiter but not massive enough to begin nuclear fusion in its core, which is the defining characteristic of a star. Scientist using NASA's Spitzer Space Telescope recently made the first ever direct measurement of wind on a brown dwarf.

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Rethinking cosmology: Universe expansion may not be uniform

Astronomers have assumed for decades that the Universe is expanding at the same rate in all directions. A new study based on data from ESA’s XMM-Newton, NASA’s Chandra and the German-led ROSAT X-ray observatories suggests this key premise of cosmology might be wrong.

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Cosmic expansion measured across the sky.

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Black Hole Bends Light Back on Itself

New study proves a theory first predicted more than 40 years ago

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This illustration shows how some of the light coming from a disk around a black hole is bent back onto the disk itself due to the gravity of the hefty black hole. The light is then reflected back off the disk. Astronomers using data from NASA's now-defunct Rossi X-ray Timing Explorer (RXTE) mission were able to distinguish between light that came straight from the disk and light that was reflected. The bluish material coming off the black hole is an outflowing jet of energetic particles.

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New “refrigerator” super-cools molecules to nanokelvin temperatures

Technique may enable molecule-based quantum computing.

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A new “refrigerator” super-cools molecules to nanokelvin temperatures. The technique may enable more complex, molecule-based quantum computing.

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Origins of Earth’s magnetic field remain a mystery

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This visualization shows the magnetic field around Earth, or the magnetosphere. Earth’s magnetic field origins are still a mystery, a new MIT study finds.

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Jets from a Galaxy Collision

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Artist's impression of an active galaxy sporting a relativistic jet.