Astronomy
Hubble Gives Us an Accurate Measurement for Uranus's Day Length
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!
Supermassive Black Holes Could Strip Stars Down to their Helium Cores
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.
We now know the shape of notorious asteroid 2024 YR4 that dominated headlines recently — it's probably 'suburban,' too
How to watch Jared Isaacman's NASA chief confirmation hearing in the Senate today
Space could emerge from time
Space could emerge from time
Could we use black holes to power future human civilizations? 'There is no limitation to extracting the enormous energy from a rotating black hole'
NASA's in a 'weird period' right now, acting chief Janet Petro says
Sixty Years in Canberra: NASA’s Deep Space Network
This baby galaxy cluster is powering extreme star formation with a hidden fuel tank
The hunt for the birthplace of Indo-European languages
The hunt for the birthplace of Indo-European languages
US needs 'orbital interceptors' to win a war in space, Space Command chief says
Bangladesh becomes 54th nation to join NASA's Artemis Accords for 'peaceful exploration of deep space'
A flower's point of view of a rocket launch: Space photo of the day
Ancient rocks boost case for mini ice age linked to fall of Rome
Ancient rocks boost case for mini ice age linked to fall of Rome
Record-breaking 'dead' galaxy discovered by JWST lived fast and died young in the early universe
An All-Sky Infrared Camera Named Dalek Continues the Search for Alien Technosignatures
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.