Levantamentos Astronômicos

A Mysterious Radio Signal from Space Is Ticking Every 16 Days — And Astronomers Are Listening Closely

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 every … Mar 22, 2026

Science

Radio Survey Maps 13.7 Million Hidden Objects

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 objects… Mar 13, 2026

Space

Moon spared: the 100-metre-wide object story

New Webb observations have ruled out a previously feared collision of asteroid 2024 YR4 with the Moon. Here’s what scientists found, what would have happened if it struck, and why… Mar 12, 2026

Space

Fireball Crashes Through Roof in Koblenz

A bright fireball streaked across western Europe on 8 March 2026; the European Space Agency is probing the event after fragments reportedly punched a football‑sized hole in a Kobl… Mar 11, 2026

Space

Snowmen Flying Through Deep Space

A new simulation from Michigan State University shows how two‑lobed, snowman-shaped Kuiper Belt objects can form naturally by gravitational collapse, and explains how icy grains s… Fev 27, 2026

Space

Rocky Outlier: A Planet That Breaks the Rules

Researchers find planet that upends the textbook 'rocky-inside, gaseous-outside' view of planetary systems; new data on LHS 1903 point to late, inside‑out formation and force mode… Fev 22, 2026

Science

Hipparchus’s Lost Star Map Recovered

Researchers at SLAC/Stanford used powerful X-ray beams to read hidden Greek astronomical notes beneath a medieval palimpsest, recovering star coordinates from Hipparchus—the oldes… Jan 24, 2026

Space

Space as a Sticky Fluid?

A late‑2025 arXiv preprint proposes that the vacuum behaves like a viscous, elastic medium with 'spatial phonons'—a phenomenological model that the author says can reconcile tensi… Jan 19, 2026

Space

Vanishing Planet: GJ 3470b's Disappearing Atmosphere

Hubble observations show the Neptune-sized exoplanet GJ 3470b leaking a giant hydrogen cloud and shedding mass at a record rate. Astronomers say the planet may be on a long path t… Jan 19, 2026

Space

X‑Ray Map Reveals Interstellar 'Tunnel'

A new 3D map built from SRG/eROSITA X‑ray data shows low‑density channels in the Local Hot Bubble — including a conspicuous 'tunnel' toward Centaurus — and points to how ancient s… Jan 19, 2026

Technology

3I/ATLAS Is Not an Alien Probe

Comet 3I/ATLAS—only the third confirmed interstellar object to visit our solar system—has been scanned by major radio and optical facilities; scientists report no signs of enginee… Jan 13, 2026

Space

Cloud 9: A Failed Galaxy Revealed

Using Hubble and radio telescopes, astronomers have confirmed a starless, gas-rich dark-matter cloud — nicknamed Cloud‑9 — that matches long-standing theoretical predictions of a … Jan 07, 2026

Space

SPHEREx Maps Sky in 102 Infrared Colors

NASA's SPHEREx mission has completed a full-sky survey in 102 infrared bands, producing a multilayered cosmic atlas that scientists say can turn a flat star chart into a 3D map of… Dez 20, 2025

Space

Roman Telescope Assembled — Next Step in Alien Hunt

NASA has finished assembling the Nancy Grace Roman Space Telescope at Goddard, advancing hardware and techniques that could reshape the hunt for habitable worlds and biosignatures… Dez 17, 2025

Space

Astronomers discover skyscraper-size asteroid hidden in sun's glare — and it's moving at a near-record pace | Live Science

The newly discovered "twilight" asteroid, 2025 SC79, was obscured by the sun's glare until an astronomer pointed the Dark Energy Camera at it, highlighting the potential dangers o… Nov 12, 2025

levantamentos astronômicos

Articles about levantamentos astronômicos

A Mysterious Radio Signal from Space Is Ticking Every 16 Days — And Astronomers Are Listening Closely

Radio Survey Maps 13.7 Million Hidden Objects

Moon spared: the 100-metre-wide object story

Fireball Crashes Through Roof in Koblenz

Snowmen Flying Through Deep Space

Rocky Outlier: A Planet That Breaks the Rules

Hipparchus’s Lost Star Map Recovered

Space as a Sticky Fluid?

Vanishing Planet: GJ 3470b's Disappearing Atmosphere

X‑Ray Map Reveals Interstellar 'Tunnel'

3I/ATLAS Is Not an Alien Probe

Cloud 9: A Failed Galaxy Revealed

SPHEREx Maps Sky in 102 Infrared Colors

Roman Telescope Assembled — Next Step in Alien Hunt

Astronomers discover skyscraper-size asteroid hidden in sun's glare — and it's moving at a near-record pace | Live Science