Archive for the ‘space’ category: Page 2

Sep 15, 2023

Earth’s health is depleting on six of nine parameters

Posted by in categories: health, space

Human intervention right now holds the key.

How do we assess the health of our planet? In 2009, a group of 28 scientists wanted a definite answer to this question. So, they outlined nine planetary boundaries, which are critical for Earth’s stability.

A reassessment in 2023 says that six of these nine planetary boundaries have been transgressed, suggesting that Earth is “well outside of the safe operating space for humanity.”

Sep 14, 2023

James Webb telescope stumbles onto signs of possible life on Earth-like planet

Posted by in category: space

(WTAJ) — Astronomers using the James Webb Space Telescope say they have stumbled onto possible signs of life coming from a massive Earth-like exoplanet, NASA confirmed in a release.

K2-18 b is an exoplanet — a planet outside our solar system — that’s 8.6 times as massive as Earth. A new investigation with the JWST revealed the presence of “carbon-bearing molecules” that include methane and carbon dioxide. The findings add to recent studies that suggest that K2-18 b could be a Hycean exoplanet, meaning it has the potential to hold a hydrogen-rich atmosphere and a water-covered surface, NASA reported.

Astronomers first studied K2-18 b’s atmosphere with NASA’s Hubble Space Telescope in 2019. The results prompted further studies of the massive exoplanet that have changed experts understanding of the system.

Sep 14, 2023

Einstein cross! Gravitationally lensed ‘flower’ spotted in deep space (photo)

Posted by in category: space

A new image from the European Southern Observatory (ESO) captures a cosmic wildflower in space.

Using the ESO’s Very Large Telescope (VLT), astronomers photographed a distant galaxy surrounded by what appear to be four light-blue flower petals.

Sep 14, 2023

This nano submarine will explore solar system’s icy moons

Posted by in category: space

Not only that, but the more we comprehend our blue world’s frigid ecosystems, the better equipped we’ll be to locate and recognize how life forms may exist on other celestial worlds in our solar system.

Sep 14, 2023

NASA-inspired airless bicycle tires are now available for purchase

Posted by in category: space

Two years ago, we heard how the Ohio-based Smart Tire Company was developing shape memory airless bicycle tires. Well, the resulting Metl tires can now be purchased via – you guessed it – a Kickstarter campaign.

The never-go-flat tires were created in partnership with NASA, which had already applied the same technology to tires for its planetary rover vehicles … after all, it would be pretty difficult to fix a flat on the surface of the Moon or Mars. And no, they’re not literally airless. They’re hollow – so they have air in them – that air just isn’t pressurized, nor is it required for the tire to hold its shape.

At the heart of each Metl tire is a Slinky-like spring that runs all the way around the tire. That spring is made of a shape memory nickel-titanium alloy known as NiTinol, which is described as being strong like titanium yet also stretchy like rubber.

Sep 13, 2023

New poppy seed-sized fuel pellets could power nuclear reactors on the moon

Posted by in categories: nuclear energy, space

Scientists have developed a nuclear fuel source no larger than a seed, which NASA will test for use in future moon missions.

Sep 13, 2023

For All Mankind Season 4 Teaser | ‘Helios Recruitment’

Posted by in categories: futurism, space

Check out the new For All Mankind Season 4 Teaser starring Joel Kinnaman!

► Shop Rotten Tomatoes:

Continue reading “For All Mankind Season 4 Teaser | ‘Helios Recruitment’” »

Sep 13, 2023

The Asteroid Hit by NASA Seems to Be Moving Strangely, High School Students Find

Posted by in category: space

The mission always had uncertainties. “If an asteroid were constructed as a monolithic rock, similar to the rocks we find on the ground, the deflection and calculations would be straightforward,” Peter Veres, an astronomer at the Center for Astrophysics, Harvard & Smithsonian, who was not involved in the study, tells Smithsonian magazine in an email. “Instead, we already knew from ground-based observations and several space missions that asteroids are often rubble piles—loosely aggregated spheres of large and small boulders, dust and sometimes ice, with numerous empty spaces.” Hitting one of these asteroids, Veres says, is almost more like striking a sponge than a rock, and it’s harder to predict the impact’s results.

Swift’s team shared their surprising new research at a meeting of the American Astronomical Society in June and posted a preprint of their paper on the online server Arxiv in August. According to Veres, the team relied on a widely used method and gathered enough data points to conclude that Dimorphos’ orbit is degrading.

As for why this may be happening, scientists only have guesses so far. One idea is that Dimorphos was once tidally locked to Didymos—meaning that, like Earth’s moon, the same side of the satellite always faced its host. But now, after the DART mission, this alignment might have been broken, causing Dimorphos to tumble around as the system’s tidal forces change its orbit. If this is the case, Veres says, Dimorphos will likely settle back into a tidally locked state over time.

Sep 12, 2023

NASA astronaut Frank Rubio breaks U.S. record for longest spaceflight

Posted by in categories: habitats, space

Rubio surpassed the U.S. space endurance record of 355 days on Monday at the International Space Station. He arrived at the outpost last September with two Russians for a routine six months. But their stay was doubled after their Soyuz capsule developed a coolant leak while parked at the space station.

The trio will return to Earth on Sept. 27 in a replacement capsule that was sent up empty for the ride home. By then, Rubio will have spent 371 days in space, more than two weeks longer than Mark Vande Hei, the previous U.S. record holder for a single spaceflight. Russian cosmonaut Valeri Polyakov holds the world record of 437 days, set in the mid-1990s.

Sep 12, 2023

India’s Chandrayaan-3 moon lander shines in radar images from lunar orbit (photos)

Posted by in category: space

India’s Chandrayaan-3 moon lander, which is currently hibernating, showed up in fresh images taken by the nation’s Chandrayaan-2 lunar orbiter.

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