Space
What Would Happen if the Sun Disappeared?
What would happen if the Sun vanished? Explore how Earth’s orbit, temperatures, oceans, and surviving life would change in total darkness forever.
Which Planet Has The Biggest Storm?
Discover why Jupiter's Great Red Spot is the largest storm in the solar system and what scientists have learned about this centuries-old atmospheric giant.
Could Humans Live On Titan?
Though Titan has an atmosphere and surface relatively similar to Earth, its temperatures and rotation would make life on Titan difficult for humans.
What's Outside the Universe?
Most people are aware of the Big Bang, but rarely dive into the specifics of what's outside the universe. Is it even possible to know?
What Would Jupiter Look Like as a Star?
See how Jupiter might glow, change color, and alter the solar system if the giant planet gained enough mass to become a star.
What Happens Inside A Neutron State
A teaspoon of neutron star matter weighs about a billion tons, revealing why these collapsed stellar remnants are among the densest objects in the universe.
What's the Fastest Thing in the Universe?
Light sets the universe’s speed limit, but cosmic rays, pulsars, black hole jets, and Parker Solar Probe come astonishingly close.
What's the Biggest Thing in the Universe?
The Hercules-Corona Borealis Great Wall is the biggest known structure in the universe, defying our notions of what's possible.
Which Planet Is the Hottest?
With a daytime surface temperature of up to 867 degrees Fahrenheit, this planet gets so hot that it literally melts lead.
Which Planet Has the Strongest Gravity?
Despite its invisibility, gravity affects every aspect of our lives. But which planet in our solar system has the strongest gravity?
Which Planet Is Shrinking?
Mercury is shrinking as its metal core cools, cracking the crust into mile-high cliffs and fault scarps that show the small planet is still active.
How Long Could You Survive in Space?
Learn how long you could survive in space without protection and how spacesuits extend survival during astronaut emergencies.
Could Life Exist Beneath Europa's Ice?
Jupiter's moon Europa hides an ocean with twice Earth's water beneath miles of ice. Could anything live in it? NASA's Europa Clipper aims to find out.
Why Is the Sun Yellow?
We call the sun yellow, but it is really white, thanks to how Earth's atmosphere scatters its light and a misleading yellow dwarf-star label.
Which Planet Has the Shortest Year?
Small, robust, and named for the fastest Roman god, the planet with the shortest year happens to be one of the most scientifically interesting.
Could Saturn's Rings Eventually Disappear?
Discover why Saturn’s iconic rings may eventually disappear, how ring rain works, and what scientists think could happen next.
Could a Planet Exist Without a Star?
Rogue planets drift through space without stars, raising questions about darkness, hidden heat, liquid water, and life beyond solar systems.
Why Can't We See the Edge of the Universe?
Current cosmology indicates that the universe has no edge. Learn why the observable horizon, expanding space, and dark energy limit what can be seen.
What's the Emptiest Place in Space?
Cosmic voids are the universe’s emptiest regions. Learn how the Boötes Void formed and why these vast spaces matter to science.
Why JWST Found Carbon Dioxide On An Exoplanet
JWST detected carbon dioxide on WASP-39 b, proving it can study distant exoplanet atmospheres and search for signs of life.
What's the Brightest Object in the Sky?
The Sun outshines the Moon, Venus, Sirius, and the ISS. Learn how magnitude, luminosity, and distance reveal the sky’s brightest object.
Which Planet Has the Worst Weather?
Venus has the worst weather in the solar system with acid clouds, crushing pressure, violent winds, and heat hot enough to melt lead.
The Most Mysterious Signals Ever Detected From Space
Humanity, for as long as it has been conscious of the stars, has postulated that they may contain alien life. Mysterious signals may be our first sign.
What The Bennu Samples Are Telling Us About Life's Origins
Bennu samples returned by NASA reveal ancient stardust, water-linked minerals, and life-building chemistry from the early solar system.
Why Vera Rubin Will See More Of The Sky Than Any Telescope Before It
Vera Rubin will turn the southern sky into a living time-lapse, revealing what moves, explodes, or hides in darkness between one night and the next.
Is the Universe Getting Bigger?
The universe is getting bigger, and space itself is doing the stretching. Discover why expansion is speeding up and how the cosmos may end.
Could the Moon Ever Drift Away?
Learn why the Moon drifts 1.5 inches away from Earth each year and how it has lengthened Earth's days, changed the tides, and shaped eclipses.
What Hera Will Find At The Asteroid DART Crashed Into
NASA's DART mission successfully altered an asteroid's orbit. See how ESA's Hera mission is examining the collision to improve planetary defense.
Why Venus Became A Hellish Planet
The planet Venus is downright hellish due to its thick atmosphere, high temperatures, volcanoes, and sulphuric clouds that rain acid.
Why Mars Lost Most Of Its Atmosphere
Mars once had thicker air and flowing water. Then its magnetic shield failed, and the Sun slowly stripped the planet into the frozen desert we see today.
Could Humans Survive on Europa?
Humanity's search to discover other habitable planets has led us to Europa, a moon of Jupiter's which may contain a saltwater ocean which supports life.
What Euclid Is Mapping In The Dark Universe
Euclid is mapping galaxies, dark matter, and dark energy to help scientists understand how the universe formed and why it continues to expand.
Why The Search For Planet Nine Picked Up Again
Learn why astronomers are searching for Planet Nine again and how the Rubin Observatory could help reveal a hidden world beyond Pluto.
Why Pluto Might Still Have A Liquid Ocean
Pluto is one of the coldest worlds in the solar system, yet evidence suggests a vast liquid ocean may still survive beneath its icy crust.
Why Voyager 1 Keeps Sending Strange Data From Interstellar Space
Explore Voyager 1's journey into interstellar space, the truth behind its strange signals, and the discoveries that changed space science.
The Largest Volcanoes Ever Found Beyond Earth
Explore the largest volcanoes beyond Earth, from Mars’ Olympus Mons to icy cryovolcanoes on Ceres and Enceladus and lava lakes on Io.
Inside the Coldest Place in the Universe
Discover the Boomerang Nebula, the coldest known natural place in the universe, and learn how a dying star created this cosmic deep freeze.
Why Apophis Will Pass Closer Than Many Satellites In 2029
Witness the rare 2029 flyby of asteroid Apophis as it passes closer to Earth than many satellites, offering a once-in-a-generation research opportunity.
What The Latest Mars Helicopter Flights Taught Us
NASA's Ingenuity helicopter made history as the first aircraft on another planet, reshaping Mars exploration and future space missions.
Why Webb Is Rewriting The Story Of The Early Universe
The Webb space telescope has the capability to capture images of galaxies from billions of years ago, changing our understanding of the universe.