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

— Tycho Brahe

Astronomy

Why is the moon's far side so weird? China's lunar sample-return mission may have figured it out

Space.com - Wed, 07/16/2025 - 6:00am
The impact that carved out the moon's huge South Pole-Aitken basin may explain the puzzling differences between the lunar near and far sides.
Categories: Astronomy

Underwater volcanic brine pools could be home to extreme life forms

New Scientist Space - Cosmology - Wed, 07/16/2025 - 4:00am
An expedition in the Red Sea found several brine pools that appear to be fed by underwater volcanoes, which may be home to microbes and animals with unique adaptations
Categories: Astronomy

Underwater volcanic brine pools could be home to extreme life forms

New Scientist Space - Space Headlines - Wed, 07/16/2025 - 4:00am
An expedition in the Red Sea found several brine pools that appear to be fed by underwater volcanoes, which may be home to microbes and animals with unique adaptations
Categories: Astronomy

Earth views from Cupola during Ignis mission

ESO Top News - Wed, 07/16/2025 - 4:00am
Video: 00:00:40

View of Earth as seen by ESA project astronaut Sławosz Uznański-Wiśniewski inside the seven-windowed cupola, the International Space Station's "window to the world".

The European Space Agency-built Cupola is the favourite place of many astronauts on the International Space Station. It serves not only as a unique photo spot, but also for observing robotic activities of the Canadian Space Agency's robotic arm Canadarm2, arriving spacecraft and spacewalks.

Sławosz was launched to the International Space Station on the Dragon spacecraft as part of Axiom Mission 4 on 25 June 2025. The 20-day mission on board is known as Ignis.
During the Ignis mission, Sławosz conducted 13 experiments proposed by Polish companies and institutions and developed in collaboration with ESA, along with three additional ESA-led experiments. These covered a broad range of areas including human research, materials science, biology, biotechnology and technology demonstrations.  

The Ax-4 mission marks the second commercial human spaceflight for an ESA project astronaut. Ignis was sponsored by the Polish government and supported by ESA, the Polish Ministry of Economic Development and Technology (MRiT) and the Polish Space Agency (POLSA).   

Categories: Astronomy

SpaceX launches 26 Starlink satellites into low Earth orbit from California

Space.com - Tue, 07/15/2025 - 10:18pm
A SpaceX Falcon 9 rocket launched 26 Starlink internet satellites into low Earth orbit after lifting off from Vandenberg Space Force Base in California on July 15, 2025.
Categories: Astronomy

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APOD - Tue, 07/15/2025 - 8:00pm


Categories: Astronomy, NASA

The precursors of life could form in the lakes of Saturn's moon Titan

Space.com - Tue, 07/15/2025 - 6:00pm
New research indicates that cellular "pockets" that are the first step toward protocells, the precursors of life, could form in the methane seas of Saturn's moon Titan.
Categories: Astronomy

Aging Rates Vary by Country. Politics Might Be Why

Scientific American.com - Tue, 07/15/2025 - 4:30pm

Social inequality and the decay of democratic institutions are linked to accelerated aging, but education seems to slow the process

Categories: Astronomy

SpaceX launches 3rd batch of satellites for Amazon's Project Kuiper megaconstellation (video)

Space.com - Tue, 07/15/2025 - 4:00pm
SpaceX launched 24 of Amazon's Project Kuiper broadband satellites early Wednesday morning (July 16), the 56th anniversary of the Apollo 11 liftoff.
Categories: Astronomy

Hubble Observations Give “Missing” Globular Cluster Time to Shine

NASA Image of the Day - Tue, 07/15/2025 - 3:35pm
This NASA Hubble Space Telescope image features a dense and dazzling array of blazing stars that form globular cluster ESO 591-12.
Categories: Astronomy, NASA

Revenge of the Savage Planet is an 'upbeat, optimistic dystopia' that pulls no punches on our corporate overlords (interview)

Space.com - Tue, 07/15/2025 - 3:00pm
'We had an idea for a meat planet' — Revenge of the Savage Planet game director Alex Hutchinson talks strange new worlds and mocking corporate spaceflight.
Categories: Astronomy

California Desert Dunes Hold Keys to Understanding Mars' Shifting Sands

Universe Today - Tue, 07/15/2025 - 2:38pm

Armed with a drone and a device which is a cross between a scoop and a spatula, a graduate student is cracking the code of Mars by studying California's desert dunes. By comparing wind carved patterns in the Algodones Desert with satellite images of the Red Planet, researchers are creating humanity's first comprehensive database of Martian sand formations, work that could determine where future astronauts can safely establish bases without getting buried alive. Her pioneering research proves that sometimes the keys to exploring alien worlds aren't found in billion dollar space missions, but in the shifting sands right here on Earth.

Categories: Astronomy

Are We in a Giant Void? That Would Help Explain the Hubble Tension

Universe Today - Tue, 07/15/2025 - 2:38pm

It's assumed that our region of the Universe isn't special, and the Hubble Tension, or mismatch of expansion rates of the Universe at different times, is happening everywhere. But what if our place is unusual, for example, if the Milky Way is inside a lower-density region of the Universe, with stronger gravity pulling material away from us in all directions? A new paper suggests we might be in a void that's emptying out towards higher-density regions all around us.

Categories: Astronomy

Scientists Discover Uranus Has a Dancing Partner

Universe Today - Tue, 07/15/2025 - 2:38pm

Hidden in the darkness between Uranus and Neptune, a team of astronomers have discovered a small world locked in a million year gravitational waltz with Uranus. The asteroid enjoying this celestial dance with Uranus completes exactly three orbits for every four of the ice giant, representing the first known stable partnership of its kind in this remote region of the Solar System. The discovery proves that even in the apparent chaos of space, there are elegant mathematical relationships that have persisted, revealing new secrets about how gravitational forces sculpt the architecture of our planetary system.

Categories: Astronomy

AI Weather Forecasts Missed the Texas Floods, and Trump NOAA Cuts Will Stymie Research

Scientific American.com - Tue, 07/15/2025 - 2:15pm

The Trump administration wants to reduce the National Oceanic and Atmospheric Administration’s budget by $2.2 billion, eliminating research that might help advance AI weather models

Categories: Astronomy

Ancient rocks show earliest evidence of tectonic activity on Earth

New Scientist Space - Cosmology - Tue, 07/15/2025 - 2:00pm
The origins of plate tectonics on Earth are hotly debated, but evidence from Australia now shows that parts of the crust moved in relation to each other as early as 3.5 billion years ago
Categories: Astronomy

Ancient rocks show earliest evidence of tectonic activity on Earth

New Scientist Space - Space Headlines - Tue, 07/15/2025 - 2:00pm
The origins of plate tectonics on Earth are hotly debated, but evidence from Australia now shows that parts of the crust moved in relation to each other as early as 3.5 billion years ago
Categories: Astronomy

The Perseid meteor shower kicks off summer 'shooting star' season this week. Here's how to see it

Space.com - Tue, 07/15/2025 - 2:00pm
Each summer, skywatchers around the world look forward to the famous Perseid meteor shower, but often overlook four lesser showers that peak between July 29 and Aug. 16.
Categories: Astronomy

Monster Black Hole Merger Is Most Massive Ever Seen

Scientific American.com - Tue, 07/15/2025 - 1:00pm

A U.S. gravitational wave detector spotted a collision between fast-spinning “forbidden” black holes that challenge physics models

Categories: Astronomy