一种自下而上的建模方法让科学家得以更深入地了解大气中的微生物群落。
Space & Planets
Trio of Space Weather Satellites Take Flight
These three satellites will that study the solar wind and its impacts.
Submerged Crater near Europe Tied to an Impact
New subsurface imaging and rock samples suggest that Silverpit Crater formed from an impact that occurred roughly 45 million years ago.
This Star Stripped Off Its Layers Long Before Exploding
A star 2 billion light-years away apparently shed most of its outer layers before exploding, providing new insights into stellar structure—and new mysteries for astronomers to solve.
Hayabusa2’s Final Target is 3 Times Smaller Than We Thought
It also spins twice as fast as previous estimates suggested. A spacecraft touchdown will be challenging, but not impossible.
Are There Metal Volcanoes on Asteroids?
Upcoming NASA observations may reveal whether ferrovolcanism shaped 16 Psyche’s metallic surface and hidden interior.
Tilted Planet System? Maybe It Was Born That Way
New observations could shed light on the degree to which misalignment in a planet-forming disk contributes to skewed planetary orbits.
A Survey of the Kuiper Belt Hints at an Unseen Planet
An analysis of more than 150 objects in the far reaches of the solar system suggests that a planet more massive than Mercury could be lurking beyond the orbit of Pluto.
Gravity with an “Edge”: What Lies Beneath Aristarchus Crater
A method combining three different approaches to the processing and analysis of GRAIL data from the Moon defines areas of sharply contrasting densities beneath Aristarchus Crater.
Perseverance Sample Shows Possible Evidence of Ancient Martian Microbial Metabolisms
A sample collected in July 2024 by NASA’s Perseverance Mars rover may be “the closest we’ve actually come to discovering ancient life on Mars,” according to Nicky Fox, the science head of NASA.
