First Green Star Ever Found

🟢 First green star discovered

👩‍🚀 Christina Koch leaves flight status

☁️ Mars cloud defies Earth physics

🌑 Rogue planet moons could host life

🔭 Mizzou leads NASA early universe mission

University of Warwick astrophysicist Mark Hollands led research examining how white dwarf stars can display unexpected colors beyond the traditional temperature-based white and blue hues astronomers previously assumed were universal.

The team's models show elements like sodium absorb orange wavelengths in ultra-dense helium plasma atmospheres, while WD J1330+6435 glows genuinely green after accreting calcium, lithium, and sodium from rocky planetary debris.

Hollands suggests only one in thirty white dwarfs displays unusual coloration, but extrapolated across the universe's entire population, this represents millions of oddly colored stellar remnants awaiting discovery.

NASA announced astronaut Christina Koch will become acting deputy chief engineer on November 1st, succeeding Katherine Van Hooser after her 35-year career with the agency ends.

Koch logged approximately 337 days in space across her career, including 328 consecutive days aboard the ISS, and holds the record for greatest distance traveled from Earth alongside her Artemis II crewmates.

Administrator Jared Isaacman stated Koch's dual experience building spacecraft systems and relying on them in orbit positions her to advance lunar surface operations, Moon base construction, and Mars preparation efforts.

University of the Basque Country planetary scientist Jorge Hernández-Bernal led simulations examining the Arsia Mons Elongated Cloud, a 1,100-mile-long water vapor formation appearing daily above Mars' 12-mile-tall extinct volcano.

ESA's Mars Express data revealed air temperatures drop 54 degrees Fahrenheit in ten minutes, enabling homogeneous nucleation without atmospheric particles, a process never before observed in planetary atmospheres.

Hernández-Bernal notes this exotic physics, requiring humidity levels 100,000 times greater than Earth's surface, demonstrates that weather systems on other worlds may operate under fundamentally different rules.

Ludwig Maximilian University of Munich researcher David Dahlbüdding led computer modeling studies examining whether moons orbiting starless rogue planets could maintain conditions suitable for liquid water and potentially life.

Simulations published in Monthly Notices of the Royal Astronomical Society show dense hydrogen atmospheres trap tidal heat, keeping Earth-sized exomoons warm enough for surface liquid water up to 4.3 billion years.

Dahlbüdding concludes these findings significantly broaden potential habitable environments, suggesting life could arise and endure even in the galaxy's darkest interstellar regions without any stellar energy source.

University of Missouri astronomer Haojing Yan leads 130 researchers from 62 institutions on the Roman eXtreme Deep Field project, receiving 386 hours of NASA observation time to study the early universe.

The Nancy Grace Roman Space Telescope's 300-megapixel Wide Field Instrument will orbit 930,000 miles from Earth, capturing single images equivalent to hundreds of separate James Webb observations in scale.

Yan states the project aims to reconstruct the universe's first 100 million years, investigating early galaxy formation, distant supernovae, rapid black hole growth, and mysterious little red dots.