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gravitation and gravity

An Experiment in Zurich Brings Us Nearer to a Black Hole’s Mysteries

An Experiment in Zurich Brings Us Nearer to a Black Hole’s Mysteries

A chalkboard illustration of the string theory calculation that shows how the axial gravitational anomaly produces current.
An Experiment in Zurich Brings Us Nearer to a Black Hole’s Mysteries

An Experiment in Zurich Brings Us Nearer to a Black Hole’s Mysteries

A chalkboard illustration of the string theory calculation that shows how the axial gravitational anomaly produces current.
An Experiment in Zurich Brings Us Nearer to a Black Hole’s Mysteries

An Experiment in Zurich Brings Us Nearer to a Black Hole’s Mysteries

A chalkboard illustration of the string theory calculation that shows how the axial gravitational anomaly produces current.
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.

Experience a Zero-Gravity Flight

Experience zero gravity in 360. If you ever wished to become an astronaut, this is your first step.
It Was a Universe-Shaking Announcement. But What Is a Neutron Star Anyway?

It Was a Universe-Shaking Announcement. But What Is a Neutron Star Anyway?

An image captured by the Very Large Telescope in Chile shows light from a kilonova, or merging of two neutron stars, indicated by the red arrow, in the galaxy NGC 4993.
Trilobites: This Fungus Borrowed From Ancient Bacteria to Defy Gravity

Trilobites: This Fungus Borrowed From Ancient Bacteria to Defy Gravity

The fruiting bodies of Phycomyces blakesleeanus, a fungus that, like humans and plants, can detect gravity.
Trilobites: This Fungus Borrowed From Ancient Bacteria to Defy Gravity

Trilobites: This Fungus Borrowed From Ancient Bacteria to Defy Gravity

The fruiting bodies of Phycomyces blakesleeanus, a fungus that, like humans and plants, can detect gravity.

Circling a Black Hole

Astronomers are probing the edge of Sagittarius A*, the supermassive black hole at the center of our galaxy.
Trolling the Monster in the Heart of the Milky Way

Trolling the Monster in the Heart of the Milky Way

The Very Large Telescope, made of four giant telescopes in Chile’s Atacama Desert.
Trolling the Monster in the Heart of the Milky Way

Trolling the Monster in the Heart of the Milky Way

The Very Large Telescope, made of four giant telescopes in Chile’s Atacama Desert.
Expected Soon: First-Ever Photo of a Black Hole

Expected Soon: First-Ever Photo of a Black Hole

A jet of subatomic particles, traveling at nearly the speed of light, streams from the center of the galaxy Messier 87. Lurking at the center of the galaxy, scientists believe, is a black hole with a
Expected Soon: First-Ever Photo of a Black Hole

Expected Soon: First-Ever Photo of a Black Hole

A jet of subatomic particles, traveling at nearly the speed of light, streams from the center of the galaxy Messier 87. Lurking at the center of the galaxy, scientists believe, is a black hole with a
Darkness Visible, Finally: Astronomers Capture First Ever Image of a Black Hole

Darkness Visible, Finally: Astronomers Capture First Ever Image of a Black Hole

The first image of a black hole, from the galaxy Messier 87.