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stars and galaxies

Lighting Up the Night Skies

Lighting Up the Night Skies

The Gleam survey’s view of the center of the Milky Way, in radio color.
Trilobites: Lighting Up the Night Skies

Trilobites: Lighting Up the Night Skies

The Gleam survey’s view of the center of the Milky Way, in radio color.
Trilobites: Lighting Up the Night Skies

Trilobites: Lighting Up the Night Skies

The Gleam survey’s view of the center of the Milky Way, in radio color.
Out There: Twinkle, Twinkle Little [Insert Name Here]

Out There: Twinkle, Twinkle Little [Insert Name Here]

The Tarantula Nebula in infrared light, as captured by the Hubble Space Telescope.
Vera Rubin, 88, Dies; Opened Doors in Astronomy, and for Women

Vera Rubin, 88, Dies; Opened Doors in Astronomy, and for Women

Vera Rubin in the 1970s, when she mapped the distribution of mass in spiral galaxies by measuring how fast they rotated.
Vera Rubin, 88, Dies; Opened Doors in Astronomy, and for Women

Vera Rubin, 88, Dies; Opened Doors in Astronomy, and for Women

Vera Rubin in the 1970s, when she mapped the distribution of mass in spiral galaxies by measuring how fast they rotated.
Trilobites: The Biggest Digital Map of the Cosmos Ever Made

Trilobites: The Biggest Digital Map of the Cosmos Ever Made

A composite image of the sky visible over Hawaii made over four years from a half-million exposures by the Pan-Starrs1 Observatory. If printed at full resolution, the researchers say, this photograph
Radio Bursts Traced to Faraway Galaxy, but Caller Is Probably ‘Ordinary Physics’

Radio Bursts Traced to Faraway Galaxy, but Caller Is Probably ‘Ordinary Physics’

A composite image of FRB 121102, which astronomers identified as the source of bursts of radio waves.
Radio Bursts Traced to Faraway Galaxy, but Caller Is Probably ‘Ordinary Physics’

Radio Bursts Traced to Faraway Galaxy, but Caller Is Probably ‘Ordinary Physics’

A composite image of FRB 121102, which astronomers identified as the source of bursts of radio waves.
Take a Number: Absolutely Every Bit of Our Galaxy

Take a Number: Absolutely Every Bit of Our Galaxy

The Milky Way as seen from a mountain in western Switzerland in August 2016.
Editorial: Twinkle, Twinkle Little Trappist

Editorial: Twinkle, Twinkle Little Trappist

Seven Earth-size planets orbit a dwarf star named Trappist-1 about 40 light-years from Earth.
Trilobites: Our Universe’s Very Dusty Early, Early Beginnings

Trilobites: Our Universe’s Very Dusty Early, Early Beginnings

An artist’s impression of what the very distant young galaxy A2744_YD4 might look like.
Trilobites: A Mysterious Flash From a Faraway Galaxy

Trilobites: A Mysterious Flash From a Faraway Galaxy

A mysterious flash of X-rays detected by NASA’s Chandra X-ray Observatory. This source likely comes from some sort of destructive event, but may be of a variety that scientists have never seen before.
Gary Steigman, Who Teased Out the Universe’s Dark Secrets, Dies at 76

Gary Steigman, Who Teased Out the Universe’s Dark Secrets, Dies at 76

Gary Steigman in an undated photo. Dr. Steigman was one of the ringleaders of cosmology in an era in which astronomy and particle physics were merging.
Out There: The Eclipse That Revealed the Universe

Out There: The Eclipse That Revealed the Universe

A view of the 1919 solar eclipse, observed in Sobral, Brazil. Arthur Eddington set out to verify Einstein’s prediction that gravity could affect the course of starlight.