Oh, would it not be absurd if there was no objective state?
What if the unobserved always waits, insubstantial,
till our eyes give it shape?

— Peter Hammill

Astronomy

Hubble Gives Us an Accurate Measurement for Uranus's Day Length

Universe Today - Tue, 04/08/2025 - 6:44pm

It’s easy to measure the rotation rate of terrestrial planet by tracking surface features but the gas and ice giants pose more of a problem. Instead, previous studies have relied upon indirect measures like measuring the rotation of their magnetic fields. Now a team of astronomers have used the Hubble Space Telescope to refine the rotation rate of Uranus with an incredible level of accuracy. This time though, instead of studying the rotation of the magnetic field, they tracked aurora to measure one rotation!

Categories: Astronomy

Supermassive Black Holes Could Strip Stars Down to their Helium Cores

Universe Today - Tue, 04/08/2025 - 6:03pm

We all know that black holes can devour stars. Rip them apart and consume their remnants. But that only happens if a star passes too close to a black hole. What if a star gets close enough to a star to experience strong tidal effects, but not close enough to be immediately devoured? This scenario is considered in a recent paper on the arXiv.

Categories: Astronomy

We now know the shape of notorious asteroid 2024 YR4 that dominated headlines recently — it's probably 'suburban,' too

Space.com - Tue, 04/08/2025 - 5:25pm
Asteroid 2024 YR4, once a potential Earth threat, likely originated from the main asteroid belt's central region, a surprising origin for Earth-crossing space rocks, a new study finds.
Categories: Astronomy

How to watch Jared Isaacman's NASA chief confirmation hearing in the Senate today

Space.com - Tue, 04/08/2025 - 5:06pm
Trump officially nominated Isaacman, a billionaire private astronaut to lead NASA, shortly after taking office.
Categories: Astronomy

Space could emerge from time

New Scientist Space - Cosmology - Tue, 04/08/2025 - 5:00pm
An investigation of the changing behaviour of a single quantum bit through time has uncovered a tantalising similarity to the geometry of three-dimensional space
Categories: Astronomy

Space could emerge from time

New Scientist Space - Space Headlines - Tue, 04/08/2025 - 5:00pm
An investigation of the changing behaviour of a single quantum bit through time has uncovered a tantalising similarity to the geometry of three-dimensional space
Categories: Astronomy

Could we use black holes to power future human civilizations? 'There is no limitation to extracting the enormous energy from a rotating black hole'

Space.com - Tue, 04/08/2025 - 5:00pm
Black holes power some of the most energetic phenomena in the known universe, but could they ever power an advanced human civilisation?
Categories: Astronomy

NASA's in a 'weird period' right now, acting chief Janet Petro says

Space.com - Tue, 04/08/2025 - 4:00pm
Acting NASA Administrator Janet Petro says that these are strange times for the space agency.
Categories: Astronomy

Sixty Years in Canberra: NASA’s Deep Space Network

NASA Image of the Day - Tue, 04/08/2025 - 3:36pm
This March 4, 2020, image shows Deep Space Station 43, a 70-meter-wide (230-feet-wide) radio antenna at NASA’s Deep Space Network facility in Canberra, Australia. The facility celebrated its 60th anniversary on March 19, 2025, while also breaking ground on a new radio antenna. The pair of achievements are major milestones for the network, which communicates with spacecraft all over the solar system using giant dish antennas located at three complexes around the globe.
Categories: Astronomy, NASA

This baby galaxy cluster is powering extreme star formation with a hidden fuel tank

Space.com - Tue, 04/08/2025 - 3:00pm
An extreme protocluster gathering of infant galaxies is hiding a vast cosmic fuel tank that is powering 400 million years of intense star formation.
Categories: Astronomy

The hunt for the birthplace of Indo-European languages

New Scientist Space - Cosmology - Tue, 04/08/2025 - 2:00pm
It’s incredibly tricky to pin down the origin of the language that led to the words spoken everywhere between Spain and India – and it’ll be even harder to be sure we’ve got it right
Categories: Astronomy

The hunt for the birthplace of Indo-European languages

New Scientist Space - Space Headlines - Tue, 04/08/2025 - 2:00pm
It’s incredibly tricky to pin down the origin of the language that led to the words spoken everywhere between Spain and India – and it’ll be even harder to be sure we’ve got it right
Categories: Astronomy

US needs 'orbital interceptors' to win a war in space, Space Command chief says

Space.com - Tue, 04/08/2025 - 2:00pm
Space Force Gen. Stephen Whiting says the United States military needs orbital weapons in order to be successful if war ever comes to space.
Categories: Astronomy

Bangladesh becomes 54th nation to join NASA's Artemis Accords for 'peaceful exploration of deep space'

Space.com - Tue, 04/08/2025 - 1:35pm
Bangladesh has added its name to the growing list of Artemis Accords signatories, continuing NASA's efforts to establish internationally cooperative space exploration.
Categories: Astronomy

A flower's point of view of a rocket launch: Space photo of the day

Space.com - Tue, 04/08/2025 - 1:03pm
Bright yellow tulips make for a striking foreground for the launch of a new crew to the International Space Station.
Categories: Astronomy

Ancient rocks boost case for mini ice age linked to fall of Rome

New Scientist Space - Cosmology - Tue, 04/08/2025 - 1:00pm
Unusual rocks on an Icelandic beach were dropped there by icebergs, adding to evidence that an unusually cool period preceded the collapse of the Roman Empire
Categories: Astronomy

Ancient rocks boost case for mini ice age linked to fall of Rome

New Scientist Space - Space Headlines - Tue, 04/08/2025 - 1:00pm
Unusual rocks on an Icelandic beach were dropped there by icebergs, adding to evidence that an unusually cool period preceded the collapse of the Roman Empire
Categories: Astronomy

Record-breaking 'dead' galaxy discovered by JWST lived fast and died young in the early universe

Space.com - Tue, 04/08/2025 - 1:00pm
The most distant and earliest "dead" massive galaxy ever seen shows some galaxies lived fast and died young shortly after the Big Bang.
Categories: Astronomy

An All-Sky Infrared Camera Named Dalek Continues the Search for Alien Technosignatures

Universe Today - Tue, 04/08/2025 - 12:35pm

In 2021, the Office of the Director of National Intelligence (ODNI) released a report detailing recently-declassified information on Unidentified Aerial Phenomena (UAP). Since then, the Department of Defense has released annual reports on UAP through the All-domain Anomaly Resolution Office (AARO). Nevertheless, there is still a lack of publicly available scientific data on the subject. To address this, a new study led by the Harvard-Smithsonian Center for Astrophysics (CfA) and the Galileo Project proposes an All-Sky Infrared Camera to search for potential indications of extraterrestrial spacecraft.

Categories: Astronomy

Want to see a lightcycle cut a cop car in half? Check out the 1st 'Tron: Ares' teaser trailer (video)

Space.com - Tue, 04/08/2025 - 12:30pm
Arriving on Oct 10, 'Tron: Ares' stars Jared Leto and.... wait no come back, the trailer looks good we swear!
Categories: Astronomy