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Plants & Animals 45 minutes ago

The salmon diaries: Life before and after Klamath Dam removal

When salmon return from the ocean to the Klamath River after the world's largest dam removal project ends this fall, they will regain access to 400 miles of historical spawning habitat their species has been cut off from ...

Planetary Sciences 1 hour ago

Not just space rocks: Six things we've learned about Earth from meteorites and comets

Apart from the sun, its planets and their moons, our solar system has vast amounts of space rocks—fragments left over from the formation of the inner planets.

Astronomy 3 hours ago

Garden-sprinkler-like jet spotted shooting out of neutron star

A strange 'garden sprinkler-like' jet coming from a neutron star has been pictured for the first time.

Planetary Sciences 3 hours ago

New ultra-hot Neptune-sized exoplanet discovered

Using NASA's Transiting Exoplanet Survey Satellite (TESS), an international team of astronomers has detected a new exoplanet. The newfound alien world, designated TOI-3261b, is nearly the size of Neptune and its equilibrium ...

Astronomy 3 hours ago

Comet Tsuchinshan showing signs of breaking up prior to swinging around the sun

Zdenek Sekanina, an astronomer with La Canada Flintridge in the U.S., reports what he describes as evidence of a possible breakup of comet Tsuchinshan prior to swinging around the sun. Sekanina specializes in comet behavior, ...

Astronomy 20 hours ago

Observatory gears up to detect thousands of elusive brown dwarfs, unlocking Milky Way mysteries

One could argue that brown dwarfs don't get the love they deserve. Sometimes referred to as "failed stars," they don't have enough mass to sustain nuclear fusion, which powers all stars, including our sun. But they are also ...

Environment 23 hours ago

Q&A: What past environmental success can teach us about solving the climate crisis

Susan Solomon, MIT professor of Earth, atmospheric, and planetary sciences (EAPS) and of chemistry, played a critical role in understanding how a class of chemicals known as chlorofluorocarbons were creating a hole in the ...

Astronomy Jul 15, 2024

Solar flares and solar magnetic reconnection get new spotlight in two blazing studies

Two recent studies published in The Astrophysical Journal discuss findings regarding solar flare properties and a new classification index and the sun's magnetic field, specifically what's called solar magnetic reconnection.

Analytical Chemistry Jul 15, 2024

Producing hydrogen and fertilizer at the same time

A research team from the University Alliance Ruhr, Germany, has found a catalyst that can be used to convert ammonia into the energy carrier hydrogen and the fertilizer precursor nitrite. The production of hydrogen and the ...

Astronomy Jul 15, 2024

Supermassive black holes have masses of more than a million suns—but their growth has slowed as the universe has aged

Black holes are remarkable astronomical objects with gravity so strong that nothing, not even light, can escape them. The most gigantic ones, known as "supermassive" black holes, can weigh millions to billions times the mass ...

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