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Archive for the ‘space’ category: Page 94

Apr 17, 2024

JWST Observes Rare Methane Glow on Brown Dwarf W1935

Posted by in categories: evolution, space

Dr. Jackie Faherty: “Methane emission was not on my radar when we started this project but now that we know it can be there and the explanation for it so enticing I am constantly on the look-out for it. That’s part of how science moves forward.”


Brown dwarfs are too large to be considered planets and too small to produce nuclear fusion like stars. But can they still exhibit some of the same characteristics as planets, like aurorae? This is what a recent study published in Nature hopes to address as a team of international researchers investigated how the brown dwarf W1935, which is located approximately 47 light-years from Earth, could not only possess methane but also have aurorae, all of which are observed on Earth, Jupiter, and Saturn. This study holds the potential to help astronomers better understand the formation and evolution of brown dwarfs, as brown dwarfs remain some of the most mysterious objects in the cosmos despite thousands being identified.

For the study, the researchers used NASA’s James Webb Space Telescope (JWST) and its powerful infrared instruments to observe 12 brown dwarfs, including W1935. In the end, JWST observed strong evidence for the existence of methane with W1935, which the researchers compared to atmospheric models to confirm these findings, along with methane existing on Jupiter, Saturn, and Earth.

Continue reading “JWST Observes Rare Methane Glow on Brown Dwarf W1935” »

Apr 17, 2024

How logic alone may prove that time doesn’t exist

Posted by in categories: physics, space

I found this on NewsBreak: How logic alone may prove that time doesn’t exist.

Apr 16, 2024

NASA spacecraft snaps awesome view of volcanoes erupting on distant world

Posted by in category: space

There are volcanoes erupting hundreds of millions of miles beyond Earth. And a NASA spacecraft is watching it happen.

The space agency’s Juno probe, which has orbited Jupiter since 2016, swooped by the gas giant’s volcanic moon Io last week, its last close planned flyby. The craft captured a world teeming with volcanoes, which you can see in the footage below.

“We’re seeing an incredible amount of detail on the surface,” Ashley Davies, a planetary scientist at NASA’s Jet Propulsion Laboratory who researches Io, told Mashable in February after a recent Io flyby. “It’s just a cornucopia of data. It’s just extraordinary.”

Apr 16, 2024

No, the expanding Universe doesn’t break the speed of light

Posted by in category: space

Yes, the Universe is expanding, but if you’ve ever wondered, ‘How fast is it expanding,’ the answer isn’t in terms of a speed at all.

Apr 16, 2024

Astronomers detect radio halo in a massive galaxy cluster

Posted by in category: space

An international team of astronomers has performed radio observations of a massive galaxy cluster known as ACT-CL J0329.2–2330, which resulted in the detection of a new radio halo in this cluster. The finding was reported in a research paper published April 5 on the pre-print server arXiv.

Apr 16, 2024

Study uses thermodynamics to describe expansion of the universe

Posted by in categories: energy, space

Quaise Energy, a Massachusetts Institute of Technology spin-off, plans to vaporize rocks in the Earth’s core and tap into deep geothermal energy.

Apr 16, 2024

Astronomers Furious at Plan to Shut Down NASA Space Telescope

Posted by in category: space

NASA is proposing to wind down its Chandra X-ray Observatory. And astronomers are pissed.

Apr 15, 2024

Spacehopper: Three-legged jumping robot to study asteroids in space

Posted by in categories: robotics/AI, space

The robot is controlled by a neural network trained in deep reinforcement learning via simulation.

Students at ETH Zurich are creating a robot that can move around in extremely low gravity by hopping like a human.

Continue reading “Spacehopper: Three-legged jumping robot to study asteroids in space” »

Apr 15, 2024

The Universe Could Be Eternal, According to This Controversial Theory

Posted by in category: space

The idea of a static universe would mean our cosmos is eternal, and it isn’t expanding after all.

Apr 15, 2024

‘Cosmic Cannibals’ Expel Jets into Space at 40 percent the Speed of Light

Posted by in category: space

For the first time, astronomers have measured the speed of fast-moving jets in space, crucial to star formation and the distribution of elements needed for life.

The jets of matter, expelled by stars deemed ‘cosmic cannibals’, were measured to travel at over one-third of the speed of light — thanks to a groundbreaking new experiment published in Nature today.

The study sheds new light on these violent processes, making clever use of runaway nuclear explosions on the surface of stars.

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