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A history of injustice and the greatest natural location for ground-based telescopes have long been at odds. Here’s how the healing begins.

A deep dive into the chaotic journey of star formation.

The nearby, bright star Fomalhaut had the first optically imaged planetary candidate. Using JWST’s eyes, astronomers found so much more.

With stars, gas, and dark matter, galaxies come in a great array of sizes. This new one, Ursa Major III/UNIONS 1, is the smallest by far.

As democracy recedes and fascism rises in the USA and around the world in 2025, history provides a lesson in how science can fight fascism.

Like humans, stars die. The James Webb Space Telescope’s early images already give us a lot of information about how this happens.

When we see spiral galaxies, some are face-on, others are edge-on, but most are tipped at an angle. But which side is closest to us?

How fast is the Universe expanding? Two major methods disagree. New JWST data, just released, strengthens this Hubble tension even further.

Temperatures in the Sun’s core exceed 10 million degrees Celsius. But how on Earth did we actually come to know that?

From when its light was emitted, the El Gordo galaxy cluster might be the most massive object in all of existence. Here’s how JWST sees it.

In the expanding Universe, different ways of measuring its rate give incompatible answers. Nobel Laureate Adam Riess explains what it means.

Along with gravitational lensing and ALMA’s incredible long-wavelength spectroscopy, JWST is reshaping our view of the early Universe.

Barnard’s star, the closest singlet star system to ours, has long been a target for planet-hunters. We’ve finally confirmed it: they exist!

One of the most promising dark matter candidates is light particles, like axions. With JWST, we can rule out many of those options already.

If you can identify a foreground star, the spike patterns are a dead giveaway as to whether it’s a JWST image or any other observatory.

In 1924, Edwin Hubble found proof that the Milky Way isn’t the only galaxy in the Universe.

When we see pictures from Hubble or JWST, they show the Universe in a series of brilliant colors. But what do those colors really tell us?

On July 12, 2022, JWST will release its first science images. Here are 5 ways the telescope’s findings could change science forever.

From inside our Solar System, zodiacal light prevents us from seeing true darkness. From billions of miles away, New Horizons finally can.

A true scientific view of if, where, and when extraterrestrial life exists is within our grasp thanks to biosignatures and technosignatures.

Astronomers have been looking for radio waves sent by a distant civilization for more than 60 years.

The structure of our Solar System has been known for centuries. When we finally started finding exoplanets, they surprised everyone.

25 years ago, our concordance picture of cosmology, also known as ΛCDM, came into focus. 25 years later, are we about to break that model?

DESI has allowed astronomers to create an unprecedented 3D map of the Universe representing 20% of the entire sky.

There’s no upper limit to how massive galaxies or black holes can be, but the most massive known star is only ~260 solar masses. Here’s why.

Archaeologists can learn how societies lived by studying what they left behind when they died. Astronomers are doing much the same thing.

Carl Sagan was far from the first to declare we are the children of ancient stars.

The closest known star that will soon undergo a core-collapse supernova is Betelgeuse, just 640 light-years away. Here’s what we’ll observe.

Scientists can make substantial progress without fully understanding exactly what they’re doing.

It was barely a century ago that we thought the Milky Way encompassed the entirety of the Universe. Now? We’re not even a special galaxy.