Sunday, July 12, 2026

Most Of Moon’s Water Likely Remains Chemically Bound In Its Deep Interior

Geologist-Astronaut Harrison H. Schmitt is photographed standing next to a huge, split boulder at Station 6 on the sloping base of North Massif during the third Apollo 17 extravehicular activity (EVA-3) at the Taurus-Littrow landing site. Credit: NASA

Aside from an unknown quantity of water in the Moon’s permanently shaded polar craters, the lion’s share of what water the Moon may have is likely chemically bound in its deep interior.



China Successfully Tests Reusable Long March-10B

China's Long March-10B booster successfully landed in its retrieval net system on July 10th, 2026. Credit: CCTV

On Friday, July 10th, China achieved a major milestone as its Long March-10B completed a its maiden test flight, which included the retrieval of its first stage booster.



Saturday, July 11, 2026

Friday, July 10, 2026

A Rapidly-Growing Black Hole in a Nearby Galaxy Could Provide a Window Into the Early Universe.

Illustration of the black hole at the center of the galaxy SDSS J110546.07+145202.4, highlighting its luminous accretion disk and jet. Credit: MPIfR

The black hole at the centre of a nearby galaxy is growing exceptionally fast, and is producing a burst of radio emission that has never been observed before. With characteristics that are expected in the early Universe, this unique galaxy provides important insights into the processes that governed the growth of the first black holes.



Only Binary Stars Can Create Interacting Supernovae

Most stars, including massive ones that will end their lives as supernova explosions, are in binary pairs. Some of the massive, donor stars in these relationships will explode as interacting supernovae due to material ejected before it explodes. The material forms a cocoon of circumstellar material that is illuminated for much longer than a typical supernova. Image Credit: ASIAA/Sung-Han Tsai

When a massive star reaches the end of its life, it explodes as a supernova that can light up the sky for months. But some supernovae stay luminous for much longer, and astrophysicists have wondered what causes their extended brightness. New research points to binary stars, where one star expels material right before the explosion that creates a cocoon of circumstellar medium.



Thursday, July 9, 2026

How 'Star City' Reimagined the Space Race With Soviets as the Stars

A female cosmonaut (played by Alice Englert) speaks after landing on the moon in "Star City." (Credit: Apple TV)

How do you capture the mood of the 1960s space race in a fictional universe where the Soviets beat the Americans to the moon? The production team for Apple TV's "Star City" series rose to the challenge.



To Ancient Astronomers, Theta Eridani Was Brighter For A Thousand Years. Now We Know Why

Theta Eridani was considered one of the thirteen brightest stars by ancient astronomers, but it's not that luminous now. That mismatch has puzzled modern day astronomer, who've struggled to understand the discrepancy. But modern observations show it's actually a triple star system, and mass transfer between the stars can explain its ancient luminosity. Image Credit: STScI/DSS

Ptolemy and al-Sufi were keen ancient astronomers, one in Greece and one in Persia, whose observations were separated by almost a thousand years. They both noted that the star Theta Eridani was far brighter than it is today. Now we know why.