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Phosphorus Prepared Earth For Complex Life And Could Be A Valuable Biosignature October 23, 2025
A new study has revealed how phosphorus, a nutrient essential for photosynthesis, surged into ancient oceans and started Earth's first major rise in atmospheric oxygen more than 2 billion years ago.
Acting NASA Chief Announces More "Shakeups" October 23, 2025
Acting NASA chief Sean Duffy announces that NASA's plan to land astronauts on the Moon by 2027 is no longer achievable and announces new competitions to develop a lunar lander.
A Galaxy's Age Determines What Type Of Planets It Can Form October 22, 2025
The chemistry of a galaxy changes over time as generations of stars live and die, spreading the results of their nucleosynthesis out into space. But stars with different masses produce different elements, and these stars have different lifespans. That means that over time, the materials readily available for planet formation also change.
The JWST Spots A Doomed Star Entombed In Thick Dust October 22, 2025
Astronomers working with the JWST, along with help from the Hubble, have found a red supergiant star that eventually exploded as a supernova. The discovery helps solve the 'red supergiant problem' that confounds efforts to understand how these stars serve as progenitors that eventually explode as Type II supernova.
Dark Matter Could Color Our View of the Universe October 22, 2025
Dark matter could tint light passing through it, depending on the model. While the effect is tiny, it is just on the edge of our ability to detect it.