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Archive for the ‘space’ category: Page 84

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.

Apr 14, 2024

Physicists solve puzzle about ancient galaxy found by Webb telescope

Posted by in categories: physics, space

Last September, the James Webb Space Telescope, or JWST, discovered JWST-ER1g, a massive ancient galaxy that formed when the universe was just a quarter of its current age. Surprisingly, an Einstein ring is associated with this galaxy. That’s because JWST-ER1g acts as a lens and bends light from a distant source, which then appears as a ring—a phenomenon called strong gravitational lensing, predicted in Einstein’s theory of general relativity.

Apr 14, 2024

Video: Largest 3D map of the universe reveals hints of new physics

Posted by in categories: physics, space, virtual reality

Astronomers have produced the largest 3D map of the universe, which can be explored in an interactive VR video. In the process, they’ve uncovered some tantalizing hints that our understanding of physics, including the ultimate fate of the cosmos, could be wrong.

The Dark Energy Spectroscopic Instrument (DESI) is a huge international project to map out the universe in three dimensions, which began collecting data in 2021. This early version of the map only includes data collected during the first year – 5.7 million galaxies and quasars out of the planned goal of 40 million. This data allows the scientists to peer as far as 11 billion light-years into deep space and time, providing a glimpse into the very early universe with an unprecedented precision of less than 1%.

Continue reading “Video: Largest 3D map of the universe reveals hints of new physics” »

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