A decades-old waiver power and an obscure Supreme Court case about a Utah railroad are now central to whether the FAA can strip environmental and safety reviews from commercial rocket launches.
Pluto's heart is erasing its own history, its nitrogen plains so geologically restless that they shed impact scars faster than they accumulate them.
The solar system's most boring-looking planet conceals a nauseating secret beneath its serene exterior.
The galaxy harbors trillions of orphaned worlds, cast out from their birth systems and now drifting alone through the void.
A decade-long hunt for the solar system's missing tenth planet begins with the most powerful digital eye ever aimed at the sky.
The Perseverance rover has found carbon molecules in Martian rocks that mirror the chemistry underlying all known life—raising urgent questions about what conditions created them.
A spacecraft running on 1970s computer chips still transmits data from the edge of interstellar space—a feat of engineering that raises an uncomfortable question about what we've sacrificed for speed.
In the solar system's deep freeze, heat from within may unlock worlds we thought impossible to inhabit.
But the mountain is also sacred to Native Hawaiians, and decades of construction have ignited a battle over who gets to use Earth's most precious viewing platform.
A hidden world betrayed itself through the infrared haze—revealing how Webb sees through cosmic dust that defeated astronomers for over a decade.
The planet's backwards rotation and glacial spin create a cosmic paradox: sunrise comes in the west, and the Sun takes longer to cross the sky than Venus takes to orbit the Sun.
Neptune radiates more heat than it receives from the Sun, yet somehow generates winds twice as fast as Earth's most violent hurricanes.
A tantalizing theory built on lightning observations and physics calculations—not proof of a gem-filled world orbiting the sun.
A faint spectral signature hinting at gases tied to Earth's ocean life has scientists arguing whether we're seeing biosignatures or just chemistry.
Astronomers have long puzzled over where the universe's gold originates—now evidence points to the catastrophic collision of two neutron stars, an explosion so luminous it drowns out hundreds of millions of suns.
Titan has rivers, rain and seas—but none of them contain a drop of water, because on Saturn's moon, methane flows where water freezes solid.
