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Two major alien-life announcements in 2025 generated enormous excitement, but most astrobiologists remained unconvinced. Only 6.6% of surveyed experts thought possible biological molecules on K2-18b probably represented extraterrestrial life, while . ...

Interstellar comet 3I/ATLAS contains exceptionally high levels of methanol, suggesting it formed under conditions very different from those that shaped most comets in our solar system. ALMA also revealed that tiny icy grains around the comet are ...

Scientists found that a tiny atomic structure that forms on nickel oxide during methane conversion is more effective than the metallic nickel long believed to drive the reaction. The discovery allowed a low-nickel catalyst to rival one containing 10 ...

A new analysis of more than 1,700 supernovae is questioning whether the universe is really accelerating at all. After accounting for the ages of the stars that produce these explosions, researchers found signs that cosmic expansion may actually be .. ...

Astronomers have detected an exceptionally faint hydrogen radio signal from billions of light-years away using South Africa's MeerKAT telescope. Instead of finding galaxies one at a time, the technique measures their combined hydrogen glow across ...

Physicists have directly observed a long-predicted quantum effect of gravity, putting one of Einstein's foundational ideas to a striking new test. Using ultracold atoms, researchers split an atom's quantum wave so that one part was held in place ...

A more realistic quantum model has revealed evidence that strange, nearly immobile quasiparticles called fractons could exist in solid materials. Their inability to move freely could make them promising building blocks for unusually robust quantum .. ...

Scientists have devised a new way to switch magnetic computer memory while using far less energy than today's leading technologies. By mathematically optimizing the pulses used to flip digital bits, the method could reduce energy consumption by ...