Space & Future
Scientists crack 1.4-billion-year-old salt crystals to reveal Earth’s ancient air
More than a billion years before dinosaurs—and long before plants and animals—Earth looked very different.
In what is now northern Ontario, a shallow, salty lake...
Webb spots the ‘smoke’ from crashing exocomets around a nearby star
The James Webb Space Telescope (JWST) was involved in yet another first discovery recently available in pre-print form on arXiv from Cicero Lu at...
Scientists solve a big bang theory puzzle that could point to dark matter
For years, one of the most intriguing mysteries in physics has been dark matter—an invisible substance thought to make up most of the matter...
Astronomers discover the violent origin of mysterious blue cosmic explosions
For years, astronomers have been puzzled by rare and dramatic flashes of blue and ultraviolet light that suddenly appear in distant galaxies and then...
Astronomers find the first compelling evidence of monster stars in the early universe
One of the greatest mysteries the James Webb Space Telescope (JWST) was developed to investigate was the birth of supermassive black holes (SMBHs).
For more...
A year that mattered: Caltech’s scientific journey in 2025
Caltech is a place unlike any other, an Institute that is truly "small but mighty."
Its small size and the expertise of its community enable...
The Milky Way had a wild past, and Webb is finally revealing it
How did the Milky Way become the calm, spiral galaxy we see today?
New observations from the James Webb Space Telescope (JWST) suggest that our...
Gaia space telescope spots possible planets forming around baby stars
How do planets like Earth and Jupiter come into existence?
Astronomers are beginning to answer that question thanks to new observations from the European Space...
NASA’s Perseverance Rover is ready for many more miles—and new discoveries on Mars
After nearly five years on Mars, NASA’s Perseverance rover is proving it was built to last.
Since landing in February 2021, the six-wheeled robot has...
Astronomers witness a violent space collision around a nearby star
Astronomers have captured something extraordinary: the aftermath of a violent collision between large space rocks in another planetary system.
Using NASA’s Hubble Space Telescope, scientists...
This shape-shifting wheel could help robots explore the moon’s hidden caves
Exploring the Moon’s surface is challenging enough, but reaching what lies beneath it is even harder.
Deep pits and long lava tubes on the Moon...
Why Saturn’s moon Titan might be less oceanic—and more complex—than thought
For years, scientists believed that Titan, Saturn’s largest moon, hid a vast ocean of liquid water beneath its thick, icy shell.
This idea made Titan...
Deep Space
Scientists discover new tardigrade fossil in 16-million-year-old amber
Tardigrades, also known as water bears, are a diverse group of charismatic microscopic invertebrates that are best known for their ability to survive extreme...
A star is born: Stunning new image reveals baby stars in a nearby cosmic...
A new image taken with the powerful Dark Energy Camera (DECam) shows a breathtaking view of a dark, dusty region in space called the...
Scientists decode the mysterious brightness of FU Orionis in the Orion constellation
In the vast expanse of the Orion constellation, a unique double star system known as FU Orionis has puzzled astronomers since 1936.
This young star...
Why most exoplanets are magma worlds
In astronomy, there is a concept called “degeneracy”.
It has nothing to do with delinquent people, but instead is used to describe data that could...
How the dinosaur-killing asteroid helped life bounce back
About 66 million years ago, a giant asteroid slammed into Earth and wiped out the dinosaurs, along with around 70% of all life in...