There Are More Galaxies in the Universe Than Seconds Since the Big Bang
The observable universe contains an estimated 2 trillion galaxies. The Big Bang occurred 13.8 billion years ago — but …
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Space
The awe-inspiring vastness of the cosmos and our universe
15 Amazing Stories
Voyager 1 Carries Humanity's Golden Record 24 Billion Kilometers Into Interstellar Space
Right now, a 12-inch gold-plated copper disc is traveling more than 24 billion kilometers from Earth, farther than any h…
Neil Armstrong's Footprints on the Moon Will Remain There for 100 Million Years
With no atmosphere, no wind, no rain, and no plate tectonics, the Apollo astronauts' footprints in lunar dust will remai…
The Bullet Cluster Is the Clearest Direct Evidence We Have for Dark Matter
In 2006, astronomers pointed the Hubble Space Telescope and the Chandra X-ray Observatory at a violent collision between…
A Day on Venus Lasts Longer Than a Full Venusian Year — 243 Earth Days vs. 225
Venus rotates so slowly on its axis — and orbits so quickly around the sun — that one Venusian day is longer than on…
The Sun Contains 99.86% of All the Mass in Our Entire Solar System
Despite Jupiter being a thousand Earths, despite Saturn's magnificent rings, despite billions of asteroids — all the p…
A Rogue Planet With No Star Drifts Through the Galaxy in Total Darkness Forever
Astronomers have confirmed dozens of "rogue planets" — Jupiter-sized worlds drifting through interstellar space withou…
Black Holes Slowly Evaporate Over Time — Stephen Hawking Proved It in 1974
In 1974, Stephen Hawking upended the assumption that nothing could ever leave a black hole. By applying quantum mechanic…
Scientists Photographed the Milky Way's Four-Million-Solar-Mass Black Hole in 2022
On May 12, 2022, the Event Horizon Telescope collaboration released the first direct image of Sagittarius A*, the superm…
The Oldest Light in the Universe: What the CMB Reveals About Our Cosmic Origins
Before there were galaxies, stars, or planets, there was light. The Cosmic Microwave Background is a faint glow of radia…
NASA Confirmed Water Ice in Permanently Shadowed Craters Near the Moon's Poles
NASA confirmed in 2018 that water ice exists in permanently shadowed craters at the Moon's poles. These deposits could f…
James Webb Captured Galaxies Forming Just 300 Million Years After the Big Bang
The James Webb Space Telescope can see galaxies as they were just 300 million years after the universe began — overtur…