Explore Space GV

Decoding the cosmos daily | Deep dives into astronomy, space tech & cosmic discoveries.

[Explore Space GV @explorespacegv]

UFO images released by US government.
@RonyVernet

[Explore Space GV @explorespacegv]

We just went from 3,000 known hydrogen halos around early galaxies to 33,000. Ten times more, in one study. These clouds existed 10-12 billion years ago and some stretch hundreds of thousands of light-years wide. They're the raw material the first galaxies were built from.

[Explore Space GV @explorespacegv]

On Earth, a barely-flammable material might self-extinguish gravity pulls hot gas up fast enough to snuff the flame. On the Moon, gravity is 6× weaker. That same material could burn indefinitely. @NASA is sending a fire experiment to the lunar surface .t

[Explore Space GV @explorespacegv]

Jupiter's largest moon (Ganymede) is bigger than Mercury, has its own magnetic field, and hides an ocean larger than all of Earth's oceans combined.

We thought it was just an icy rock. It may have active geysers venting that ocean to the surface.

[Explore Space GV @explorespacegv]

On Earth, a barely-flammable material might self-extinguish gravity pulls hot gas up fast enough to snuff the flame. On the Moon, gravity is 6× weaker. That same material could burn indefinitely. @NASA is sending a fire experiment to the lunar surface .t

[Explore Space GV @explorespacegv]

The rocket that will carry humans to the Moon in 2027 just left the factory.Artemis III SLS core stage 212 feet tall, 733,000 gallons of fuel rolled out of New Orleans on April 20th. Two years after Artemis II flew around the moon, the landing mission is becoming real hardware.

[Explore Space GV @explorespacegv]

In 1932, a mud volcano in Azerbaijan exploded without warning, shot a 150-metre fireball into the sky, and nearly destroyed a lighthouse. These aren't lava volcanoes they erupt cold mud, methane, and fire. Azerbaijan has 350 of them. Some have created entire islands in minutes.

[Explore Space GV @explorespacegv]

Scientists just found a "bathtub ring" on mars, a flat coastal shelf wrapping the entire northern hemisphere, a structure that size takes millions of years to form, this isn't a lake, this is evidence mars had a stable ocean covering a third of the planet.

[Explore Space GV @explorespacegv]

Scientists just found a "bathtub ring" on mars, a flat coastal shelf wrapping the entire northern hemisphere, a structure that size takes millions of years to form, this isn't a lake, this is evidence mars had a stable ocean covering a third of the planet.

[Explore Space GV @explorespacegv]

Mars has no global magnetic field it died billions of years ago. But Mars still has a magnetotail, a streamer of charged particles stretching into space behind it. Scientists just caught it flap

[Explore Space GV @explorespacegv]

Scientists analyzed 100,000 stars and found something unexpected: star ages decrease as you move out from the galactic center then suddenly reverse.

That U-shaped flip in the data marks the true edge of where the Milky Way is still building itself, 40,000 light-years out.

[Explore Space GV @explorespacegv]

Scientists analyzed 100,000 stars and found something unexpected: star ages decrease as you move out from the galactic center then suddenly reverse.

That U-shaped flip in the data marks the true edge of where the Milky Way is still building itself, 40,000 light-years out.

[Explore Space GV @explorespacegv]

Since the first gravitational lens was discovered ~50 years ago, we've found roughly 2,500 total. Euclid just scanned 0.04% of its planned data and found 500 more.

The full dataset is expected to reveal 10,000+ new lenses.

[Explore Space GV @explorespacegv]

3I/ATLAS is only the third object ever confirmed to have come from outside our solar system.

Its water is chemically alien deuterium levels 30x higher than any comet we've ever seen.

Wherever it was born, it was colder and darker than anything in our neighbourhood.

[Explore Space GV @explorespacegv]

3I/ATLAS is only the third object ever confirmed to have come from outside our solar system.

Its water is chemically alien deuterium levels 30x higher than any comet we've ever seen.

Wherever it was born, it was colder and darker than anything in our neighbourhood.

[Explore Space GV @explorespacegv]

The Sun fires a constant stream of charged particles at Earth at 400 km per second.

Our magnetic field deflects all of it silently, invisibly, every second of every day.

A joint ESA-China satellite launches May 19 to X-ray that shield for the first time ever.

[Explore Space GV @explorespacegv]

Astronomers just found 70 galaxies with no visible stars.
not dead galaxies, not distant ones. Galaxies full of gas and dark matter that simply never ignited.

They've been drifting through the universe, invisible, since before our solar system existed.

[Explore Space GV @explorespacegv]

Astronomers just found 70 galaxies with no visible stars.
not dead galaxies, not distant ones. Galaxies full of gas and dark matter that simply never ignited.

They've been drifting through the universe, invisible, since before our solar system existed.

[Explore Space GV @explorespacegv]

In the final hours before a massive star explodes, its core can suddenly spin faster not slower.

The culprit is magnetic field geometry, get the wrong configuration and the core accelerates toward collapse at speeds our models said were impossible.

[Explore Space GV @explorespacegv]

The images of Venus were taken Aug. 18 (left) and Aug. 27 (right), 2016, by the near infrared camera on Japan’s Akatsuki Venus probe, show the clear line of denser (darker) clouds moving across the planet.

(Credit: T. Imamura, Y. Maejima, K. Sugiyama et al.)

[Explore Space GV @explorespacegv]

Jupiter's moon Ganymede, imaged by NASA's Juno mission.

Credit: @NASA /@NASAJPL -@Caltech /SwRI/MSSS