无线电频谱

The Sun erupted with two massive X-class flares in less than seven hours, triggering widespread communication blackouts across four continents as Solar Cycle 25 nears its peak. 四月 24, 2026

A bright, short radio burst—called a 'mega‑laser'—was detected by South Africa's MeerKAT and traced to a merging galaxy 8+ billion light‑years away. Astronomers say the signal i... 三月 23, 2026

Astronomers have detected a mysterious radio signal from space that repeats on a 16.35‑day clock. The pattern — brief fast radio bursts arriving in a four‑day active window ever... 三月 22, 2026

A new LOFAR data release catalogs nearly 13.7 million radio sources across 88% of the northern sky, exposing black-hole jets, galaxy clusters, supernova remnants and other objec... 三月 13, 2026

New SETI research shows space weather can smear and hide narrow alien radio beacons, meaning signals could arrive looking like noise. Scientists want to broaden search methods a... 三月 12, 2026

Astronomers have published the first radio image that resolves two supermassive black holes orbiting each other at the heart of quasar OJ287, confirming a decades‑old prediction... 二月 10, 2026

Spacecraft have recorded 'chirping' radio emissions far from Earth’s surface — a discovery that rewrites where and how magnetospheric waves form and raises fresh questions about... 二月 07, 2026

A paper from Xidian University describes a reconfigurable metasurface that can switch between scattering and radiation modes and harvest ambient radar energy—an advance that cou... 一月 05, 2026

An amateur astronomer discovered that a fleet of classified SpaceX satellites is transmitting on uplink frequencies normally reserved for ground stations, raising questions abou... 十一月 21, 2025