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Space Telescopes
The most iconic, longest-lived space telescope of all, NASA's Hubble, is experiencing orbital decay as the solar cycle peaks. Here's why.
"I hope we take a mindset where we are willing to look for weird life in weird places."
The JWST's observations of well-developed galaxies early in universal history may coincide with accepted astronomical theory after all.
The center of the galaxy doesn't just host stars and a black hole, but an enormous set of rich gassy and dusty features. Find out more!
Lasers, mirrors, and computational advances can all work together to push ground-based astronomy past the limits of our atmosphere.
NASA's only flagship X-ray telescope ever, Chandra, still works and has no planned successor. So why does the President want to kill it?
The detection of two celestial interlopers careening through our solar system has scientists eagerly anticipating more.
Here in our Solar System, we only have one star: a singlet. For many systems, including the highest-mass ones, that's anything but the norm.
Today, supermassive black holes and their host galaxies tell a specific story in terms of mass. But JWST reveals a different story early on.
Since JWST first glimpsed the Universe, we've entered a new era in understanding the earliest objects in the Universe. What have we learned?
Freethink's weekly countdown of the biggest space news, featuring Starship's second test flight, a new "dark mysteries" telescope, and more.
The Big Bang theory is not threatened, but astrophysicists have some explaining to do.
In 2022, Hubble owned the record for most distant galaxy. Today, that galaxy is down to the 9th most distant object. Thanks, JWST.
With JWST, Chandra, and gravitational lensing combined, evidence has emerged for the earliest black hole ever. And wow, is it a surprise!
Sometimes, going "deeper" doesn't reveal the answers you seek. By viewing more Universe with better precision, ESA's Euclid mission shines.
The TRAPPIST-1 system is a treasure trove of possibilities and questions. Observations by JWST have just begun.
A true scientific view of if, where, and when extraterrestrial life exists is within our grasp thanks to biosignatures and technosignatures.
JWST has already broken many of Hubble's cosmic records. Perhaps additional record-breakers already exist within this data-rich image?
In the largest star-forming region close to Earth, JWST found hundreds of planetary-mass objects. How do these free-floating planets form?
With so many early galaxies of unexpectedly large brightnesses, JWST surprised us all. Here's how scientists made sense of what we see.
Within the next few decades, we may well have hard evidence for the existence of alien life on worlds light-years distant from Earth.
Named "Supernova H0pe," it shows how JWST plus gravitational lensing can be used to solve the greatest puzzle facing astronomy today.
How does star-formation, occurring in small regions within galaxies, affect the entire host galaxy that contains it? JWST holds the answers.
The asteroid is expected to come within 140,000 miles of Earth — well inside the moon’s orbit.
Each of our three nearest stars might have an Earth-like planet in orbit around it. Here's what we'll learn when we finally observe it.
The space telescope's findings challenge the notion of a galaxy brimming with life.
For thousands of years, we puzzled at how far away the Moon was. Today we know its distance, at any time, to within millimeters.
While Saturn and its moons all appear faint and cloudy to JWST, Saturn's rings are the star of the show. Here's the big scientific reason.
Exoplanet LP 791-18d is likely to have an atmosphere and liquid water.
Hubble showed us what our modern day Universe looks like. JWST's big goal was to teach us how the Universe grew up. Here's where we are now.