Behold, directly overhead, a certain strange star was suddenly seen...
Amazed, and as if astonished and stupefied, I stood still.

— Tycho Brahe

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Water Droplet Science

NASA Image of the Day - Fri, 12/19/2025 - 12:44pm
NASA astronaut Don Pettit demonstrates electrostatic forces using charged water droplets and a knitting needle made of Teflon.
Categories: Astronomy, NASA

Water Droplet Science

NASA News - Fri, 12/19/2025 - 12:43pm
NASA/Don Pettit

NASA astronaut Don Pettit demonstrates electrostatic forces using charged water droplets and a knitting needle made of Teflon. This series of overlapping frames from Feb. 19, 2025, displays the unique attraction-repulsion properties of Teflon and charged droplets, similar to how charged particles from the Sun behave when they come in contact with Earth’s magnetic field. Highly energetic particles from space that collide with atoms and molecules in the atmosphere create the aurora borealis.

Explore more of what Pettit has coined “science of opportunity.”

Image credit: NASA/Don Pettit

Categories: NASA

Water Droplet Science

NASA - Breaking News - Fri, 12/19/2025 - 12:43pm
NASA/Don Pettit

NASA astronaut Don Pettit demonstrates electrostatic forces using charged water droplets and a knitting needle made of Teflon. This series of overlapping frames from Feb. 19, 2025, displays the unique attraction-repulsion properties of Teflon and charged droplets, similar to how charged particles from the Sun behave when they come in contact with Earth’s magnetic field. Highly energetic particles from space that collide with atoms and molecules in the atmosphere create the aurora borealis.

Explore more of what Pettit has coined “science of opportunity.”

Image credit: NASA/Don Pettit

Categories: NASA

Offshore Wind Farm in China Becomes a Haven for Oysters, Barnacles, and More, Study Finds

Scientific American.com - Fri, 12/19/2025 - 12:30pm

A wind farm off the coast of China appeared to boost fish numbers and supported colonies of oysters and barnacles, according to new research

Categories: Astronomy

The Hubble Witnesses Catastrophic Collisions In The Fomalhaut System

Universe Today - Fri, 12/19/2025 - 12:10pm

For the first time, astronomers using the Hubble Space Telescope have spotted a pair of catastrophic collisions in another solar system. They were observing Fomalhaut, a bright star about 25 light-years away, and detected a pair of planetesimal collisions and their light-reflecting dust clouds. The system is young, and the collisions reflect what our Solar System was like when it was young.

Categories: Astronomy

Galileo: the journey of satellites 33 and 34

ESO Top News - Fri, 12/19/2025 - 11:30am
Video: 00:05:30

On 17 December 2025, two new Galileo satellites lifted off from Europe’s Spaceport in French Guiana. This was the 14th launch for Europe’s satellite navigation operational satellite programme, reinforcing Europe’s resilience and autonomy. The flight, VA266, was the first launch of Galileo satellites on Europe’s newest heavy-lift launcher Ariane 6. 

The satellites, designated SAT 33 and SAT 34, separated from the launcher after a flight of just under four hours. The launch was declared successful after acquisition of signal and the confirmation that both satellites are healthy with their solar arrays deployed. 

“With these new satellites, we strengthen Europe’s global navigation services - delivering greater precision, reliability and autonomy in space”, affirmed Andrius Kubilius, EU Commissioner for Defence and Space.  

“Galileo stands as the world’s most accurate global navigation satellite system – and today we have increased its reliability and robustness,” said Josef Aschbacher, ESA’s Director General.  

The European Space Agency was responsible for carrying out the Galileo launch with Arianespace on behalf of the European Commission. The Galileo satellites were manufactured by OHB, under contract with ESA. Now in orbit, the EU Agency for the Space Programme (EUSPA) brings the satellites into service and oversees their operation. 

Follow the launch campaign

Access the related broadcast quality video material

Categories: Astronomy

Post-CM25 industry event online set for 14 January

ESO Top News - Fri, 12/19/2025 - 11:05am

On 14 January 2026, the European Space Agency (ESA) will hold an online post-CM25 industry event for all ESA industrial partners.

Categories: Astronomy

ESA Impact 2025 - October-December

ESO Top News - Fri, 12/19/2025 - 10:49am

ESA Impact 2025 - October-December

Welcome to ESA Impact, your interactive gateway to the most captivating stories and stunning visuals from the European Space Agency, now in a mobile-friendly format.

Categories: Astronomy

Do You Know What Time It Is? If You're On Mars, Now You Do.

Universe Today - Fri, 12/19/2025 - 10:15am

Ask someone on Earth for the time and they can give you an exact answer, thanks to our planet's intricate timekeeping system, built with atomic clocks, GPS satellites and high-speed telecommunications networks. Ask for the time on Mars and the answer gets much more complicated.

Categories: Astronomy

Metrics

NASA News - Fri, 12/19/2025 - 9:42am
2 Min Read Metrics Services Catalog

Click here to view the FY25 Services Catalog

The catalogs provide service description, chargeback rate, unit of measure, and service level indicators for each NSSC service.

Service Level Agreement (SLA)

Click here to view the Service Level Agreement

The SLA provides information about roles, responsibilities, rates, and service level indicators for all NASA Centers. The SLA is negotiated on an annual basis in line with the fiscal year. A single SLA is shared by all NASA Centers and signed by the Associate Administrator, Chief Financial Officer, Chief Information Officer, and the Office of Inspector General. The SLA provides for the delivery of specific services from the NSSC to NASA Centers and Headquarters Operations in the areas of:

  • Financial Management
  • Procurement
  • Human Resources
  • Information Technology
  • Agency Business Services

NSSC Bill (Formerly know as Performance and Utilization Report (PUR))

*** On-Line Course Management and Training Purchases have been realigned to the OLC &Training Purchases section of the bill in accordance with the realignment of training funds. Center Special Projects have been consolidated into one Special Projects bill with the funding Center identified for each project.***

FY 2026 – Utilization Reports
October 2025
November 2025

FY 2025 – Utilization Reports

September 2025
August 2025
July 2025
June 2025
May 2025

April 2025
March 2025
February 2025
January 2025
December 2024
November 2024
October 2024

FY 2024 – Utilization Reports
September 2024
August 2024
July 2024
June 2024
May 2024
April 2024
March 2024
February 2024
January 2024
December 2023
November 2023
October 2023


 

Categories: NASA

Metrics

NASA - Breaking News - Fri, 12/19/2025 - 9:42am
2 Min Read Metrics Services Catalog

Click here to view the FY25 Services Catalog

The catalogs provide service description, chargeback rate, unit of measure, and service level indicators for each NSSC service.

Service Level Agreement (SLA)

Click here to view the Service Level Agreement

The SLA provides information about roles, responsibilities, rates, and service level indicators for all NASA Centers. The SLA is negotiated on an annual basis in line with the fiscal year. A single SLA is shared by all NASA Centers and signed by the Associate Administrator, Chief Financial Officer, Chief Information Officer, and the Office of Inspector General. The SLA provides for the delivery of specific services from the NSSC to NASA Centers and Headquarters Operations in the areas of:

  • Financial Management
  • Procurement
  • Human Resources
  • Information Technology
  • Agency Business Services

NSSC Bill (Formerly know as Performance and Utilization Report (PUR))

*** On-Line Course Management and Training Purchases have been realigned to the OLC &Training Purchases section of the bill in accordance with the realignment of training funds. Center Special Projects have been consolidated into one Special Projects bill with the funding Center identified for each project.***

FY 2026 – Utilization Reports
October 2025
November 2025

FY 2025 – Utilization Reports

September 2025
August 2025
July 2025
June 2025
May 2025

April 2025
March 2025
February 2025
January 2025
December 2024
November 2024
October 2024

FY 2024 – Utilization Reports
September 2024
August 2024
July 2024
June 2024
May 2024
April 2024
March 2024
February 2024
January 2024
December 2023
November 2023
October 2023


 

Categories: NASA

Putting data centres in space isn't going to happen any time soon

New Scientist Space - Cosmology - Fri, 12/19/2025 - 9:42am
From massive solar panels to the difficulty of staying cool - not to mention high-energy radiation - there are a lot of engineering problems that need to be solved before we can build data centres in space
Categories: Astronomy

Putting data centres in space isn't going to happen any time soon

New Scientist Space - Space Headlines - Fri, 12/19/2025 - 9:42am
From massive solar panels to the difficulty of staying cool - not to mention high-energy radiation - there are a lot of engineering problems that need to be solved before we can build data centres in space
Categories: Astronomy

Week in images: 15-19 December 2025

ESO Top News - Fri, 12/19/2025 - 9:15am

Week in images: 15-19 December 2025

Discover our week through the lens

Categories: Astronomy

The US beat back bird flu in 2025 – but the battle isn’t over

New Scientist Space - Cosmology - Fri, 12/19/2025 - 9:00am
After starting the year with its first known bird flu death, the US expanded its efforts to contain the virus, which enabled it to end its public health emergency response months later
Categories: Astronomy

The US beat back bird flu in 2025 – but the battle isn’t over

New Scientist Space - Space Headlines - Fri, 12/19/2025 - 9:00am
After starting the year with its first known bird flu death, the US expanded its efforts to contain the virus, which enabled it to end its public health emergency response months later
Categories: Astronomy

Quantum computers turned out to be more useful than expected in 2025

New Scientist Space - Cosmology - Fri, 12/19/2025 - 8:00am
Rapid advances in the kind of problems that quantum computers can tackle suggest that they are closer than ever to becoming useful tools of scientific discovery
Categories: Astronomy

Quantum computers turned out to be more useful than expected in 2025

New Scientist Space - Space Headlines - Fri, 12/19/2025 - 8:00am
Rapid advances in the kind of problems that quantum computers can tackle suggest that they are closer than ever to becoming useful tools of scientific discovery
Categories: Astronomy

NASA’s SPHEREx Just Dropped Its First Full-Sky Map, and the View Is Dazzling

Scientific American.com - Fri, 12/19/2025 - 7:30am

NASA’s newest space telescope has unveiled a stunning map of the cosmos in infrared

Categories: Astronomy

It’s Raining Magnetic 'Tadpoles' on the Sun

Universe Today - Fri, 12/19/2025 - 7:27am

Getting close to things is one way for scientists to collect better data about them. But that's been hard to do for the Sun, since getting close to it typically entails getting burnt to a crisp. Just ask Icarus. But if Icarus had survived his close encounter with the Sun, he might have been able to see massive magnetic “tadpoles” tens of thousands of kilometers wide reconnecting back down to the surface of our star. Or maybe not, because he had human eyes, not the exceptionally sensitive Wide-Field imagers the Parker Solar Probe used to look at the Sun while it made its closest ever pass to our closest star. A new paper in The Astrophysical Journal Letters from Angelos Vourlidas of Johns Hopkins University’s Applied Physics Laboratory and his co-authors describes what they say on humanity’s closest brush with the Sun so far.

Categories: Astronomy