An astronomer is a scientist in the field of astronomy who focuses their studies on a specific question or field outside the scope of Earth. They observe astronomical objects such as stars, planets, moons, comets and galaxies – in either observational or theoretical astronomy. Examples of topics or fields astronomers study include planetary science, solar astronomy, the origin or evolution of stars, or the formation of galaxies. A related but distinct subject is physical cosmology, which studies the Universe as a whole.

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Astronomers Detect Residual Glow around Our Solar System

Astronomers Have Found Two Temperate Super-Earths Orbiting a Nearby Red Dwarf

Expecting a Dying Star, Astronomers Followed a Monstrous Flash to Something Else

A Star was Blocking a Galaxy, but Now it’s Moved Enough That Astronomers can Finally Examine What it Was Hiding

Mysteriously bright flash is a black hole jet pointing straight toward Earth, astronomers say - From a rough calculation, the flash appeared to give off more light than 1,000 trillion suns

Astronomers Grapple with JWST's Discovery of Early Galaxies

Astronomers Grapple with JWST's Discovery of Early Galaxies

World's largest communication satellite is a photobombing menace, astronomers warn

Work begins in Western Australia on world’s largest radio astronomy observatory — More than 100,000 antennas will be built on Wajarri country, enabling astronomers to peek billions of years back to the ‘cosmic dawn’

Astronomers image the Sun in detail using hydrogen-alpha telescopes with monochrome cameras rather than colour as they can make full use of their sensors. This means processing software is used to make the Sun appear in colours like yellow and orange

By Looking Back Through Hubble Data, Astronomers Have Identified six Massive Stars Before They Exploded as Core-Collapse Supernovae

A Huge Satellite Is Now One of the Brightest Objects In the Sky, Astronomers Warn

Astronomers find the remnants of rocky planets in two stars that evolved into white dwarfs billions of years ago.

Astronomers Spot The Biggest Galaxy Ever, And The Scale Will Break Your Brain

Astronomers Detect Very Luminous Jet from Star-Eating Supermassive Black Hole

Astronomers Watch In Awe As A Giant Black Hole Tears Apart A Star 12.4 Billion Light-Years Away

Astronomers denounce super-bright new BlueWalker 3 satellite

Mysteriously bright flash is a black hole jet pointing straight toward Earth, astronomers say

Astronomers See a Star's Final Scream Into a Black Hole Halfway Across The Universe

Astronomers Worldwide Troubled by New 'Cell Phone Towers in Space'