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NASA identifies astronaut Mike Fincke as triggering the unprecedented medical evacuation of the ISS | Scientific American

NASA identifies astronaut Mike Fincke as the individual who triggered the unprecedented medical evacuation of the International Space Station (ISS). This disclosure comes about a month after NASA decided to evacuate the four members of Crew-11 from the ISS. Fincke experienced a medical event on January 7, which led to the decision to bring him and the other crew members home weeks ahead of schedule.

@reposter

NASA space telescope gets 1st clear X-ray image of sun-like star blowing a bubble | Space

NASA's Chandra X-ray Observatory captured the first clear X-ray image of a young sun-like star, HD 61005, blowing a bubble of hot gas, known as an 'astrosphere.' This observation provides insights into the early history of our solar system and how stellar winds shape planetary environments.

@phantomObserver

JWST has mapped Uranus’s upper atmosphere in 3D

New JWST observations of Uranus reveal that its upper atmosphere is still cooling, with an average thermospheric temperature of ~426K, continuing a trend observed since the early 1990s. More interestingly, two bright auroral bands have been detected near its magnetic poles, wi

@tikihead

10d

How is it legal to bet on a space shuttle exploding?

Maybe this shouldn’t be allowed?

@hurn

11d

What man-made object has traveled furthest from earth and been successfully returned?

@Wurmhatz

16d

Einstein was right about Relativity (for now at least)

A newly detected gravitational wave, GW250114, is providing scientists with their clearest view yet of a black hole collision, offering a powerful tool to test Einstein's theory of general relativity. The clarity of the signal allowed researchers to measure multiple tones from the collision, all aligning with Einstein's predictions. This confirmation is exciting, but the possibility of future signals deviating from these predictions could lead to new insights into physics beyond our current understanding of gravity.

@capture_nest

15d

The far side of the moon, captured by a spacecraft more than a million kilometers from Earth.

Captured on June 25, 2025 by the EPIC instrument on DSCOVR.

@EagleEye

22d

Unable to tame hydrogen leaks, NASA delays launch of Artemis II until March - Ars Technica

NASA spent most of Monday trying to overcome hydrogen leaks on the Artemis II rocket.

@redskyy

26d

The Gaia space telescope: Discovering the great wave

The Gaia Space Telescope, launched by the European Space Agency, has discovered a great wave rippling across the Milky Way, extending for tens of thousands of light-years. This discovery, enabled by Gaia's ability to map billions of stars and capture three-dimensional data, provides insights into the Galaxy's structure and dynamics. The wave's existence suggests the Milky Way is more dynamic and complex than previously thought, with potential influences from interactions with other galaxies and dark matter. Future data releases from Gaia and potential missions like Voyage 2050 could offer more detailed investigations into the wave's origin and effects.

@redskyy

28d

See the Milky Way glow with the stars of the Summer Triangle above Egypt's Black Desert

Astrophotographer Osama Fathi captured a stunning image of the Summer Triangle stars - Deneb, Vega, and Altair - shining above the Milky Way in Egypt's Black Desert. The image highlights the exceptionally low light pollution and dry atmospheric conditions of the desert, allowing for high contrast between the bright core regions of the Milky Way and the surrounding stellar background.

@midi002

28d

Liftoff: /space is leading all communities is member growth 1/28/2026

I saw your growth chart. That uptick on Jan 28th is astronomical!Like to the point you should put a growth chart in your about section to brag.One giant leap for the record books.

@McLeod

28d

What is your favourite fact about our system?

Mine is that Jupiter is like our big brother that stops most asteroids.

@edwardkoenning

29d

M51: The Whirlpool Galaxy

M51: The Whirlpool Galaxy. From the #NASA #POTD site. https://apod.nasa.gov/apod/ap260114.html

@ghostveil

Jan 26th

Cassiopeia A (NIRCam Image) - New Intricate Details Of Supernova Discovered

https://science.nasa.gov/asset/webb/cassiopeia-a-nircam-image/

@hance

Jan 26th

NASA is about to send people to the moon — in a spacecraft not everyone thinks is safe to fly | CNN

As NASA prepares to launch the Artemis II mission around the moon in February, concerns have been raised about the Orion spacecraft's heat shield, which showed unexpected damage during the uncrewed Artemis I test flight. Despite investigations and adjustments to the mission's flight path, some experts remain skeptical about the safety of the spacecraft, highlighting the risks involved in the mission.

@edwardkoenning

Jan 25th

NASA POTD

Phobos: Doomed Moon of Mars. #NASA #POTD https://apod.nasa.gov/apod/ap260125.html

@BjornsDad

Jan 21st

What’s your favorite place to get space news?

There’s so many good ones. My personal favorites are Scott Manley on YouTube and the Are We There Yet podcast by NPR.

@Picard

Jan 20th

Blue Origin launching 6 people to suborbital space on Jan. 22 | Space

Blue Origin is set to launch its NS-38 suborbital mission on Jan. 22, carrying six space tourists to experience brief weightlessness and view Earth from space. The mission, Blue Origin's 17th crewed spaceflight, will be live-streamed by Blue Origin and Space.com. The crew includes a diverse group of individuals, such as an entrepreneur, a retired obstetrician, a real estate developer, a technologist, a retired Air Force colonel, and Blue Origin's director of New Shepard launch operations.

@Picard

Jan 20th

The Universe Itself Might Be Hiding the Gravity Particle From Us | PBS Space Time

This PBS Space Time episode explores the concept of quantum gravity and the elusive graviton, a hypothetical quantum particle of gravity. It discusses the challenges physicists face in detecting gravitons and the implications if the universe is inherently set up to keep this final answer out of our reach.

@Picard

Jan 20th

Severe G4 geomagnetic storm sparks jaw-dropping northern lights worldwide (photos)

A severe G4 geomagnetic storm, triggered by a fast coronal mass ejection, caused stunning northern lights to be visible far beyond their usual polar limits, with sightings reported from Germany to the southwestern United States.

@Armadillo

Jan 18th

Artemis 2 Has Arrived At the Launch Pad

We're getting closer!

@hance

Jan 17th

Wormholes may not exist—we've found they reveal something deeper about time and the universe

This article explores a new interpretation of Einstein-Rosen bridges, suggesting they reveal deeper insights about time and the universe rather than serving as wormholes. The original concept, introduced by Einstein and Rosen in 1935, was a mathematical link between two symmetrical copies of spacetime, not intended for travel but to maintain consistency between gravity and quantum physics. Recent research shows that these bridges act as a mirror in spacetime, connecting two microscopic arrows of time. This reinterpretation offers a path to reconciling quantum mechanics and general relativity, potentially resolving the black hole information paradox and suggesting that our universe may have had a history before the Big Bang.

@hance

Jan 17th

Cardiff University team helps find mysterious iron bar in space

Cardiff University astronomers, in collaboration with University College London, have discovered a large bar-shaped cloud of iron atoms inside the Ring Nebula, a colorful cloud formed by a dying sun-like star. The iron bar, which is roughly 500 times wider than Pluto's orbit and located 2,283 light-years away, was detected using the new telescope instrument called the WHT Enhanced Area Velocity Explorer (Weave). Its origin remains unclear, but it could offer insights into the future of Earth as the sun expels its outer layers, potentially engulfing Earth in a few billion years. The team plans further observations to understand the iron bar's origin and implications.

@mgp

Jan 17th

Artemis II could be launched first week of Feb

A quick overview of the mission, its crew, and what’s happening in the run up. Also all the positive potential launch dates for the next few months.

@lukebeettle

Jan 17th

Astronauts’ Brains Are Being Displaced

A recent study published in the journal PNAS reveals that astronauts' brains shift upward and backward within the skull after spaceflight, with sensory and motor regions experiencing the most significant displacement. The research, based on MRI data from 26 astronauts and a control group, indicates that the duration of exposure to microgravity correlates with the degree of brain shift. While most changes revert within six months on Earth, some deformations persist longer, raising concerns about the long-term health implications of space travel.

@Picard

Jan 16th

You just saved NASA's budget | The Planetary Society

In a significant victory for NASA and its advocates, Congress passed a budget bill that rejected almost all the draconian cuts proposed by the Office of Management & Budget (OMB) for NASA’s 2026 fiscal year. The bill provides NASA with a budget of $24.44 billion, around 1.7% below the currently enacted funding levels. This marks the largest budget for NASA since FY 1998, adjusted for inflation. The bill also addresses concerns about the impoundment of funds by requiring NASA to spend a certain amount of money per year.

@Armadillo

Jan 15th

Coverage, Briefing Set for NASA’s Artemis II Moon Rocket Roll to Pad - NASA

The agency is targeting no earlier than 7 a.m. EST, Saturday, Jan. 17, to begin the multi-hour trek from the Vehicle Assembly Building to Launch Pad 39B at NASA’s Kennedy Space Center in Florida.

@Zman

Jan 15th

Crew-11 astronauts undock in 1st-ever medical evacuation from the International Space Station (video) | Space

SpaceX's Crew-11 astronauts undocked from the International Space Station (ISS) in the first-ever medical evacuation from the orbiting lab on Jan. 14. The decision to return the crew early was due to an undisclosed medical concern with one of the astronauts. The Crew Dragon capsule, Endeavour, undocked at 5:20 p.m. EST, with an expected splashdown off the coast of California on Jan. 15. The mission, originally scheduled for a six-month stint, was cut short, leaving a skeleton crew of three aboard the ISS.

@Armadillo

Jan 15th

Crew 11 safely splashes down after shortened mission

Four space station crewmates undocked and plunged back to Earth Thursday, safely splashing down in the Pacific Ocean off the California coast six days after NASA ordered them home early because of a medical issue.

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NASA identifies astronaut Mike Fincke as triggering the unprecedented medical evacuation of the ISS | Scientific American

NASA space telescope gets 1st clear X-ray image of sun-like star blowing a bubble | Space

JWST has mapped Uranus’s upper atmosphere in 3D

How is it legal to bet on a space shuttle exploding?

What man-made object has traveled furthest from earth and been successfully returned?

Einstein was right about Relativity (for now at least)

The far side of the moon, captured by a spacecraft more than a million kilometers from Earth.

Unable to tame hydrogen leaks, NASA delays launch of Artemis II until March - Ars Technica

The Gaia space telescope: Discovering the great wave

See the Milky Way glow with the stars of the Summer Triangle above Egypt's Black Desert

Liftoff: /space is leading all communities is member growth 1/28/2026

What is your favourite fact about our system?

M51: The Whirlpool Galaxy

Cassiopeia A (NIRCam Image) - New Intricate Details Of Supernova Discovered

NASA is about to send people to the moon — in a spacecraft not everyone thinks is safe to fly | CNN

NASA POTD

What’s your favorite place to get space news?

Blue Origin launching 6 people to suborbital space on Jan. 22 | Space

The Universe Itself Might Be Hiding the Gravity Particle From Us | PBS Space Time

Severe G4 geomagnetic storm sparks jaw-dropping northern lights worldwide (photos)

Artemis 2 Has Arrived At the Launch Pad

Wormholes may not exist—we've found they reveal something deeper about time and the universe

Cardiff University team helps find mysterious iron bar in space

Artemis II could be launched first week of Feb

Astronauts’ Brains Are Being Displaced

You just saved NASA's budget | The Planetary Society

Coverage, Briefing Set for NASA’s Artemis II Moon Rocket Roll to Pad - NASA

Crew-11 astronauts undock in 1st-ever medical evacuation from the International Space Station (video) | Space

Crew 11 safely splashes down after shortened mission

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