Science

Newly discovered group hosts two optically dark star-forming galaxies

An international team of astronomers reports the discovery of a new compact galaxy group using the Atacama Large Millimeter/submillimeter Array (ALMA). The new group, designated CGG-z4, hosts two optically dark star-forming galaxies. The finding was detailed in a research paper published(https://arxiv.org/abs/2501.05288) Jan. 9 on the pre-print server arXiv.

https://phys.org/news/2025-01-newly-group-hosts-optically-dark.html

@science@lemmy.world @science@beehaw.org @space@beehaw.org @space@lemmy.world @science@lemmy.ml @space@newsmast.community @space@lemmy.ml #space #science #nasa #astronomy

APOD - Comet ATLAS Rounds the Sun

Why does Comet ATLAS have such colorful tails? Last week Comet C/2024 G3

@science@lemmy.world @science@beehaw.org space@beehaw.org @space@lemmy.world @science@lemmy.ml @space@newsmast.community #space #science #nasa #astronomy

BBC video: Archaeologists make ‘once-in-a-century’ discovery at Pompeii

APOD - Titan Touchdown: Huygens Descent Movie

https://youtu.be/msiLWxDayuA?si=NXK_30kK1o1Y0Em8

What would it look like to land on Saturn's moon Titan? The European Space Agency's Huygens probe set down on the Solar System's cloudiest moon in 2005, and a time-lapse video of its descent images was created.

@science@lemmy.world @science@beehaw.org space@beehaw.org @space@lemmy.world @science@lemmy.ml @space@newsmast.community #space #science #nasa #astronomy

Deep Look at the Sun

This image, which combines observations from several telescopes, highlights the active and flaming regions of our Sun. High-energy X-rays from the NuSTAR Space Telescope are shown in blue, low-energy X-rays from Japan's Hinode spacecraft are green, and extreme.....

@science@lemmy.world @science@beehaw.org space@beehaw.org @space@lemmy.world @science@lemmy.ml @space@newsmast.community #space #science #nasa #astronomy

Imaging Exocomet Belts: A Breakthrough Study

Website: https://joshuniverse.com/imaging-exocomet-belts-a-breakthrough-study/

Astrophysicists led by a team from Trinity College Dublin have made a groundbreaking discovery in the realm of astrophysics by imaging a large number of exocomet belts surrounding nearby stars. This research, deemed pivotal, marks the first time that such a substantial number of these mysterious structures have been captured in high-resolution images, revealing not only the belts themselves but also the tiny millimeter-sized pebbles embedded within them. This article provides a comprehensive analysis of this significant advancement in space science.

@science@lemmy.world @science@beehaw.org space@beehaw.org @space@lemmy.world @science@lemmy.ml @space@newsmast.community #space #science #nasa #astronomy

Supernova Remnant Cassiopeia A

Astronomy Picture of The Day 1/17/25

Massive stars in our Milky Way Galaxy live spectacular lives. Collapsing from vast cosmic clouds, their nuclear furnaces ignite and create heavy elements in their cores. After only a few million years for the most massive stars, the enriched material is blasted back into interstellar space where star formation can begin anew. The expanding debris cloud known as Cassiopeia A is an example of this final phase of the stellar life cycle. Light from the supernova explosion that created this remnant would have been first seen in planet Earth's sky about 350 years ago, although it took that light 11,000 years to reach us. This sharp NIRCam image from the James Webb Space Telescope shows the still hot filaments and knots in the supernova remnant. The whitish, smoke-like outer shell of the expanding blast wave is about 20 light-years across. A series of light echoes from the massive star's cataclysmic explosion are also identified in Webb's detailed images of the surrounding interstellar medium.

@science@lemmy.world @science@beehaw.org space@beehaw.org @space@lemmy.world @science@lemmy.ml @space@newsmast.community #space #science #nasa #astronomy

SpaceX Catches Booster But Loses Ship in Starship Test Flight

SpaceX's seventh flight test of its massive Starship launch system brought both thrilling advancements and unexpected challenges. Notably, the Super Heavy booster successfully returned to the launch site and was caught by the launch tower's "chopstick" arms, while the upper stage, known as Ship 33, experienced a critical failure during its ascent.

Article: https://joshuniverse.com/spacex-starship-flight-booster-success-ship-loss/

@science@lemmy.world @science@beehaw.org space@beehaw.org @space@lemmy.world @science@lemmy.ml @space@newsmast.community #space #science #nasa #astronomy

Starship Flight 7: SpaceX reports the Ship vehicle is lost after premature engine shutdown during ascent and telemetry loss.

'At this point we are assuming that we have lost the Ship,' SpaceX's Dan Huot says.

@science@lemmy.world @science@beehaw.org space@beehaw.org @space@lemmy.world @space@newsmast.community #space #science #nasa #astronomy @technology@beehaw.org @news@beehaw.org @usnews@beehaw.org @programming@beehaw.org @technology@lemmy.world @news@lemmy.world #technology

30 MINUTES - WATCH LIVE at 5:37 p.m.: Starship set to launch back to space.

SpaceX’s reusable megarocket will be taller, packed with more propellant and equipped with its first-ever payload when it makes its seventh flight test from Boca Chica, Texas.

Liftoff from “Starbase” is set for Thursday at 5:37 p.m. EST.

The company unveiled a long list of upgrades to its powerful moon rocket this month, with the goal of adding “additional vehicle performance and the ability to fly longer missions"

@science@lemmy.world @science@beehaw.org space@beehaw.org @space@lemmy.world @space@newsmast.community #space #science #nasa #astronomy

https://www.youtube.com/watch?v=4PYuUj777a0

NASA's Pandora to Illuminate Exoplanet Atmospheres

Nasa's Pandora mission is set to explore the atmospheres of distant exoplanets, adding to the growing portfolio of extraterrestrial investigation. This article provides an in-depth analysis of Pandora's objectives, milestones, and the significance of its mission in the context of modern astronomy.

https://joshuniverse.com/nasas-pandora-to-illuminate-exoplanet-atmospheres/

@science@lemmy.world @science@beehaw.org space@beehaw.org @space@lemmy.world @space@newsmast.community #space #science #nasa #astronomy

Astronomy Picture of The Day - Jan 16

M83: The Southern Pinwheel

https://apod.nasa.gov/apod/astropix.html

@science@lemmy.world @science@beehaw.org space@beehaw.org @space@lemmy.world @space@newsmast.community #space #science #nasa #astronomy

Artificial Motors Mimic Muscle Proteins for Innovation

The recent advancements in nanotechnology have paved the way for the development of artificial motors that closely replicate the natural mechanisms inherent in biological systems. A groundbreaking study from The University of Manchester, in collaboration with the University of Strasbourg, has introduced artificial rotary motors capable of mimicking muscle proteins. This innovation marks a significant step in understanding molecular machines and could have profound implications across various fields, including medicine, energy, and nanotechnology.

https://biohackers.media/artificial-motors-mimic-muscle-proteins-for-innovation/

#health #science #biology @science@lemmy.world @science@beehaw.org @news@lemmy.world @health@lemmy.world @usnews@beehaw.org

Astronomy Picture of the Day - Jan 15 2024

Wolf Moon Engulfs Mars

Explanation: Does the Moon ever engulf Mars? Yes, but only in the sense that it moves in front, which happens on rare occasions. This happened just yesterday, though, as seen from some locations in North America and western Africa. This occultation was notable not only because the Moon was a fully lit Wolf Moon, but because Mars was near its largest and brightest, moving to opposition -- the closest to the Earth in its orbit -- only tomorrow. The engulfing, more formally called an occultation, typically lasts about an hour. The featured image was taken from near Chicago, Illinois, USA just as Earth's largest satellite was angularly moving away from the much more distant red planet. Our Moon occasionally moves in front of all of the Solar System's planets. Given the temporary alignment of orbital planes, the next time our Moon eclipses Mars will be a relatively soon February 9.

@science@lemmy.world @science@beehaw.org space@beehaw.org @space@lemmy.world @space@newsmast.community #space #science #nasa #astronomy

Mid-Infrared Flares in Sagittarius A*
@science@lemmy.world @science@beehaw.org space@beehaw.org @space@lemmy.world @space@newsmast.community #space #science #nasa #astronomy

Ancient Martian Water Bodies Indicated by Wave Ripples

Follow for Fediverse Science, Astronomy, and Health News.

The research associated with this finding was published in the journal Science Advances and involved a variety of scientists affiliated with the California Institute of Technology, including John Grotzinger—Harold Brown Professor of Geology—and Michael Lamb, Professor of Geology. They employed the data collected by NASA's Curiosity rover which discovered these ripple formations as it traversed the Gale Crater region in 2022.

According to postdoctoral scholar Claire Mondro, the formation of these ripples could only have occurred in open-water conditions interacting energetically with the atmosphere: "The shape of the ripples could only have been formed under water that was open to the atmosphere and acted upon by wind." This is an important realization that suggests a stable environmental scenario existed on ancient Mars.

DOI: https://www.science.org/doi/10.1126/sciadv.adr0010

@science@lemmy.world @science@beehaw.org space@beehaw.org @space@lemmy.world @space@newsmast.community #space #science #nasa #astronomy

FDA bans Red No. 3 food dye in food, drinks

FDA: https://www.fda.gov/food/hfp-constituent-updates/fda-revoke-authorization-use-red-no-3-food-and-ingested-drugs

#health #science #biology @science@lemmy.world @science@beehaw.org @news@lemmy.world @health@lemmy.world @usnews@beehaw.org

An ancient 3-star system gave this 'blue lurker' star a turbo boost, scientists find

"We have by and large been ignoring triples in models and simulations — we're just starting to understand how these types of systems evolve."

Link: https://www.space.com/space-exploration/hubble-space-telescope/an-ancient-3-star-system-gave-this-blue-lurker-star-a-turbo-boost-scientists-find

@science@lemmy.world @science@beehaw.org space@beehaw.org @space@lemmy.world @space@newsmast.community #space #science #nasa #astronomy

ESA's XMM-Newton spacecraft has detected an unprecedented X-ray signal coming from the very edge of a supermassive black hole.

This defies how we thought matter falls into black holes, and points to a potential source of gravitational waves for ESA’s future LISA mission.

ESA Writeup: https://www.esa.int/Science_Exploration/Space_Science/XMM-Newton/XMM-Newton_catches_giant_black_hole_s_X-ray_oscillations

(Artist impression: NASA/Sonoma State University, A. Simonnet)

@science@lemmy.world @science@beehaw.org @space@lemmy.world @space@newsmast.community #space #science #nasa #astronomy

NEW JWST IMAGE shows SEVENTEEN carbon dust shells around a binary star system

@science@lemmy.world @science@beehaw.org @space@lemmy.world @space@newsmast.community #space #science #nasa #astronomy

Green Tea Protects Brain Health in Older Adults

Research conducted by the Kanazawa University Graduate School of Medical Sciences reveals a significant correlation between the consumption of green tea and a reduction in cerebral white matter lesions among older adults who do not have dementia. The findings suggest that ingesting three or more cups of green tea daily may confer protective benefits for brain health, while similar effects were not noted for coffee consumption.

https://biohackers.media/green-tea-protects-brain-health-in-older-adults/

Shibata, S., et al. (2025). Green tea consumption and cerebral white matter lesions in community-dwelling older adults without dementia. npj Science of Food.

#health #science #biology @science@lemmy.world @science@beehaw.org @news@lemmy.world @health@lemmy.world @usnews@beehaw.org

Stem cells reverse woman’s diabetes — a world first

A 25-year-old woman with type 1 diabetes started producing her own insulin less than three months after receiving a transplant of reprogrammed stem cells1. She is the first person with the disease to be treated using cells that were extracted from her own body.

“I can eat sugar now,” said the woman, who lives in Tianjing, on a call with Nature. It has been more than a year since the transplant, and, she says, “I enjoy eating everything — especially hotpot.” The woman asked to remain anonymous to protect her privacy.

James Shapiro, a transplant surgeon and researcher at the University of Alberta in Edmonton, Canada, says the results of the surgery are stunning. “They’ve completely reversed diabetes in the patient, who was requiring substantial amounts of insulin beforehand.”

#health #science #biology @science@lemmy.world @science@beehaw.org @news@lemmy.world @health@lemmy.world @usnews@beehaw.org

Check Out the Stunning New Images of Jupiter From NASA's Juno Spacecraft

NASA’s Juno spacecraft has just released stunning images of Jupiter, captured during its 66th flyby of the largest and oldest planet in our solar system.

The Juno mission has been studying the Jovian system—Jupiter, along with its rings and many moons—to learn about the giant planet’s formation and evolution with the hope that it might shed light on the development of the entire solar system, per a NASA statement. The solar-powered spacecraft launched from Cape Canaveral, Florida, in August 2011 and reached Jupiter in July 2016.

“Jupiter is the Rosetta Stone of our solar system. Juno is going there as our emissary—to interpret what Jupiter has to say,” Scott Bolton, Juno principal investigator and associate vice president of the Southwest Research Institute’s Science and Engineering Division, says in the statement.

@science@lemmy.world @science@beehaw.org @space@lemmy.world @space@newsmast.community #space #science #nasa #astronomy