Who are we? We find that we live on an insignificant planet of a humdrum star lost in a galaxy tucked away in some forgotten corner of a universe in which there are far more galaxies than people

— Carl Sagan

Astronomy

After 286 Days in Space, NASA Astronauts Return to Earth with a Splash

Scientific American.com - Tue, 03/18/2025 - 6:00pm

NASA astronauts Butch Wilmore and Suni Williams had been “stuck” at the International Space Station since June 6, 2024, after Boeing’s Starliner, the vehicle they rode to get there, ran into multiple hardware problems

Categories: Astronomy

The Square Kilometre Array Releases its First Test Image

Universe Today - Tue, 03/18/2025 - 5:27pm

The Square Kilometre Array (SKA) remains under construction with completion still a few years away. However, engineers recently provided an exciting preview having installed 1,024 of the planned 131,072 antennas and capturing a test image of the sky. The image covers about 25 square degrees and reveals 85 of the brightest known galaxies in the region. Once fully operational, the complete array is expected to detect more than 600,000 galaxies within this same area!

Categories: Astronomy

Astronomers Used Meteorites to Create a Geological Map of the Main Asteroid Belt

Universe Today - Tue, 03/18/2025 - 5:19pm

More than one million asteroids larger than 1 km exist in the main asteroid belt (MAB) between Mars and Jupiter. Their roots are in a much smaller number of larger asteroids that broke apart because of collisions, and the MAB is populated with debris fields from these collisions. Researchers have created a geological map of the MAB by tracking meteorites that fell to Earth and determining which of these debris fields they originated in.

Categories: Astronomy

Watch the sun set over the moon in epic video from private Blue Ghost lunar lander

Space.com - Tue, 03/18/2025 - 5:00pm
Firefly Aerospace's Blue Ghost moon lander captured amazing views of the lunar sunset shortly before shutting down on Sunday (March 16).
Categories: Astronomy

JWST Cycle 4 Spotlight, Part 3: Supermassive Black Holes and Cosmic Noon

Universe Today - Tue, 03/18/2025 - 4:12pm

Welcome back to our five-part examination of Webb's Cycle 4 General Observations program. In the first and second installments, we examined how some of Webb's 8,500 hours of prime observing time this cycle will be dedicated to exoplanet characterization and the study of galaxies that existed at "Cosmic Dawn" - ca. less than 1 billion years after the Big Bang.

Categories: Astronomy

Best-Yet ‘Baby Pictures’ of the Universe Unveiled

Scientific American.com - Tue, 03/18/2025 - 3:00pm

The final results from the Atacama Cosmology Telescope offer the sharpest, most sensitive view of the early cosmos that anyone has ever seen

Categories: Astronomy

Watch how SpaceX makes 15,000 Starlink satellite internet kits a day (video)

Space.com - Tue, 03/18/2025 - 3:00pm
SpaceX released a video that offers a glimpse at how Starlink satellite kits are made in the company's factory outside of Austin, Texas.
Categories: Astronomy

Dust Obscures Our View of the Cosmos. Now it's Mapped Out in the Milky Way

Universe Today - Tue, 03/18/2025 - 2:36pm

We see the Universe through a glass darkly, or more accurately, through a dusty window. Interstellar dust is scattered throughout the Milky Way, which limits our view depending on where we look. In some directions, the effects of dust are small, but in other regions the view is so dusty it's called the Zone of Avoidance. Dust biases our view of the heavens, but fortunately a new study has created a detailed map of cosmic dust so we can better account for it.

Categories: Astronomy

We Finally Know the Mass of Brand New Neutron Stars

Universe Today - Tue, 03/18/2025 - 2:23pm

When massive stars explode as supernovae, they can leave behind neutron stars. Other than black holes, these are the densest objects we know of. However, their masses are difficult to determine. New research is making headway.

Categories: Astronomy

Weird meteorite may be relic of lost planet that no longer exists

New Scientist Space - Cosmology - Tue, 03/18/2025 - 2:00pm
A meteorite discovered in north-west Africa in 2023 didn’t come from a large asteroid or any of the known planets of the solar system – but it might have formed on a planet that was destroyed long ago
Categories: Astronomy

Weird meteorite may be relic of lost planet that no longer exists

New Scientist Space - Space Headlines - Tue, 03/18/2025 - 2:00pm
A meteorite discovered in north-west Africa in 2023 didn’t come from a large asteroid or any of the known planets of the solar system – but it might have formed on a planet that was destroyed long ago
Categories: Astronomy

NASA's SpaceX Crew-9 Members Pose for Portrait

NASA Image of the Day - Tue, 03/18/2025 - 1:21pm
NASA's SpaceX Crew-9 members pose together for a portrait inside the vestibule between the International Space Station and the SpaceX Dragon crew spacecraft.
Categories: Astronomy, NASA

Astronaut takes a mind-bending trip over Earth beneath star trails: Space photo of the day

Space.com - Tue, 03/18/2025 - 1:09pm
NASA astronaut Don Pettit captured this stunning long-exposure view of Earth and stars from space at night from the International Space Station.
Categories: Astronomy

Will we soon be able to charge electric cars in minutes?

New Scientist Space - Cosmology - Tue, 03/18/2025 - 1:00pm
Speedy new chargers from Chinese automaker BYD take just 5 minutes to restore 400 kilometres of an electric car’s range, but will they be widely used?
Categories: Astronomy

Will we soon be able to charge electric cars in minutes?

New Scientist Space - Space Headlines - Tue, 03/18/2025 - 1:00pm
Speedy new chargers from Chinese automaker BYD take just 5 minutes to restore 400 kilometres of an electric car’s range, but will they be widely used?
Categories: Astronomy

Ultra-fast chargers can refill electric car batteries in minutes

New Scientist Space - Cosmology - Tue, 03/18/2025 - 1:00pm
Speedy new chargers from Chinese automaker BYD take just 5 minutes to restore 400 kilometres of an electric car’s range
Categories: Astronomy

Ultra-fast chargers can refill electric car batteries in minutes

New Scientist Space - Space Headlines - Tue, 03/18/2025 - 1:00pm
Speedy new chargers from Chinese automaker BYD take just 5 minutes to restore 400 kilometres of an electric car’s range
Categories: Astronomy

Astronomers Think They've Found a Reliable Biosignature. But There's a Catch

Universe Today - Tue, 03/18/2025 - 12:27pm

The search for life has become one of the holy grails of science. With the increasing number of exoplanet discoveries, astronomers are hunting for a chemical that can only be present in the atmosphere of a planet with life! A new paper suggests that methyl halides, which contain one carbon and three hydrogen atoms, may just do the trick. Here on Earth they are produced by bacteria, algae, fungi and some plants but not by any abiotic processes (non biological.) There is a hitch, detecting these chemicals is beyond the reach of current telescopes.

Categories: Astronomy

New cosmic 'baby pictures' reveal our universe taking its 1st steps towards stars and galaxies

Space.com - Tue, 03/18/2025 - 12:01pm
The clearest and most precise images yet of the universe’s infancy from the Atacama Cosmology Telescope show the first steps toward the first stars and galaxies.
Categories: Astronomy

Best ever map of early universe is double-edged sword for cosmologists

New Scientist Space - Cosmology - Tue, 03/18/2025 - 12:00pm
The finest ever map of the cosmic microwave background - the faint evidence of the universe's early form - has yielded precise confirmation of the age of the cosmos and its rate of expansion. But for some scientists, the findings offer a frustrating lack of clues to major cosmological mysteries
Categories: Astronomy