trace

A fireball with unexpected features as seen by the Global Fireball Observatory camera at Miquelon Lake Provincial Park, Alberta.

Scientists trace a fireball on a strange rocky meteoroid from the outskirts of the solar system

A rocky meteoroid that exploded over Canada last year was more extraordinary than it first appeared: it came from the outer solar system, where scientists thought only icy bodies existed. A cavalcade of professional and amateur astronomers took pictures and videos of the meteorites as it exploded over Alberta. Studying this data, the researchers determined …

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Astronomers trace short bursts of gamma rays farther into the distant universe

Astronomers trace short bursts of gamma rays farther into the distant universe

Using several highly sensitive instruments and sophisticated galaxy modeling, the researchers identified the galactic foci of 84 SGRBs and probed the characteristics of 69 of the identified host galaxies. Credit: Image by WM Keck Observatory/Adam Makarenko The most robust inventory to date lists host galaxies and characteristics of SGRBs. Using observations and modeling, astronomers have …

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