Medeltida munk kan ha upptäckt Halleys komet först

13 maj 2026

Rapporterad av AI

Ny forskning tyder på att en engelsk munk identifierade Halleys komet som en återkommande besökare nästan sju århundraden innan Edmond Halley fick äran för upptäckten. Eilmer av Malmesbury ska ha insett att kometen som syntes 1066 var samma objekt som han hade observerat år 989.

Enligt berättelser som bevarats av 1100-talshistorikern William av Malmesbury förstod munken Eilmer, även känd som Aethelmaer, sambandet mellan de två uppenbarelserna. Professor Simon Portegies Zwart vid Leidens universitet och forskaren Lewis nådde denna slutsats efter att ha granskat de medeltida texterna på nytt. Deras resultat presenteras i boken Dorestad and Everything After. Ports, townscapes & travelers in Europe, 800-1100.

Relaterade artiklar

Artemis II crew flies around Moon's far side, capturing craters and solar eclipse views en route home.

Artemis II astronauts fly around moon's far side

7 april 2026 Rapporterad av AI Bild genererad av AI

NASA's Artemis II crew became the first humans in over 50 years to loop around the moon's far side on April 6, traveling farther from Earth than any before them. The astronauts captured unprecedented views, including close-ups of craters and a unique solar eclipse. They are now heading back for a splashdown off California on April 10.

Ancient trees reveal medieval solar storm from 1200 ce

Researchers have uncovered evidence of a powerful solar proton event that struck Earth around 1200 ce by analyzing carbon-14 spikes in ancient Japanese trees and cross-referencing medieval records of red auroras.

Lost manuscript in rome reveals earliest english poem

18 maj 2026 Rapporterad av AI

Researchers have identified a 1,200-year-old manuscript in Rome that contains one of the oldest known copies of Caedmon’s Hymn, the first poem written in English. The discovery provides new insight into how Old English was valued in early medieval times.

Science

Ancient impact may expose Moon mantle rocks near Artemis sites

Science

Artemis II astronauts witness up to six meteorites hitting moon

Science

Asteroid to make close approach to Earth this weekend

Astronomers detect possible first 'dirty fireball' from dying star

Astronomers using China's Einstein Probe telescope have observed a powerful X-ray flash that matches the predicted signature of a 'dirty fireball,' a theorized explosion from a dying massive star. The event, labeled EP241113a, originated from a galaxy about 9 billion light years away. This detection could reveal new details about how massive stars end their lives.

Interstellar comet 3I/ATLAS contains unusual heavy water

8 maj 2026 Rapporterad av AI

A comet from beyond our solar system shows dramatically higher levels of deuterium-rich water than any object seen locally. The findings suggest it formed under much colder conditions than those in our own planetary neighborhood. Researchers used observations from two major telescopes to make the measurements.

23 juni 2026 21:23