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Cosmologists Parry Attacks on the Vaunted Cosmological Principle
A central pillar of cosmology — the universe is the same everywhere and in all directions — is surviving a storm of possible evidence against it.
The Webb Space Telescope Will Rewrite Cosmic History. If It Works.
The James Webb Space Telescope has the potential to rewrite the history of the cosmos and reshape humanity’s position within it. But first, a lot of things have to work just right.
The Astronomer Who’s About to See the Skies of Other Earths
After the ultra-powerful James Webb Space Telescope launches later this year, Laura Kreidberg will lead two efforts to check the weather on rocky planets orbiting other stars.
Neither Star nor Planet: A Strange Brown Dwarf Puzzles Astronomers
Brown dwarfs such as “The Accident” are illuminating the murky borderlands that separate planets from stars.
Squishy Neutron Star Setback Dampens Hopes of Exotic Matter
Groundbreaking results show that neutron stars of different masses may have the same size — upending astrophysical models.
Quantum Double-Slit Experiment Offers Hope for Earth-Size Telescope
A new proposal would use quantum hard drives to combine the light of multiple telescopes, letting astronomers create incredibly high-resolution optical images.
Galaxy-Size Bubbles Discovered Towering Over the Milky Way
For decades, astronomers debated whether a particular smudge was close-by and small, or distant and huge. A new X-ray map supports the massive option.