For decades, birdwatchers in Japan thought they were looking at the same little green songbird flitting through mountain forests on two far‑flung island chains. It took high‑tech DNA tests and careful recordings of birdsong to reveal that one of those birds was actually new to science. It was a hidden species that no one had

"We are firing on all cylinders."

When an invisible entity making up 85% of the universe's mass stumps the greatest scientific minds of our time, awe is an understandable response. Physicists call it “ dark matter, ” a substance they describe as the cosmic glue, the scaffolding, a web that uses gravity to corral, shape and hold together stars, planets and galaxies. Dark matter's existence is only inferred from its gravitational effects on visible matter.

NASA’s Apollo moonshots are a tough act to follow, even after all this time. As four astronauts get set to blast off on humanity’s first trip to the moon in more than half a century, comparisons between Apollo and NASA’s new Artemis program are inevitable. The world's first lunar visitors orbited the moon on Apollo 8.

The discovery was made in an ancient shipwreck in the Dor Lagoon near the Carmel Coast, where archaeologists recovered nine pieces of unprocessed iron known as “blooms. ” Researchers from the University of Haifa said Wednesday that an underwater excavation off Israel’s northern Mediterranean coast uncovered what they described as the earliest known cargo of raw iron transported by ship, dating back around 2,600 years, Xinhua reported.

A new atlas of 45 potentially habitable planets makes us think of the new film "Project Hail Mary," based on the book by Andy Weir.

The Antennae galaxies are witnessed in the process of merging into a single elliptical galaxy.

Artemis 2 aims to fly to the moon with four astronauts on April 1 at 6:24 p.m. EDT (2224 GMT). Here's how you can watch live.

The spring heat wave that baked the West for over a week has finally moved along, after setting more than 1,500 temperature records across 11 states.

The U.S. is the only country that has landed humans on the Moon. However, China is aiming to do so by 2030, and it just got a lot closer to achieving its goal.

On Episode 203 of This Week In Space, Rod Pyle and Tariq Malik are joined by Dr. Namrata Goswami of Johns Hopkins University to examine the potential threats to American leadership in space.

Priming people to watch out for political deepfakes helps them question the AI-generated videos.

The four astronauts making NASA’s next lunar leap bear little resemblance to the Apollo era. This first Artemis crew includes a woman, a person of color and a Canadian, products of a more diversified astronaut corps. None of them were alive during NASA’s storied Apollo program that sent 24 astronauts to the moon including 12 moonwalkers.

Photos show the rocket and spacecraft that NASA will use to launch astronauts toward the moon for the first time in more than 50 years.

The newly discovered sites all share a similar design: large circular structures, between approximately 50 to 250 meters in diameter, built with stones taken from local basalt fields. The stone circles of Rujm el-Hiri, nicknamed “Israel’s Stonehenge” or “Gilgal Refaim,” are not the only ones of its kind, according to a new study by Ben-Gurion University of the Negev (BGU) researchers.

Sperm struggles to find its way to an egg in microgravity, suggesting mammalian reproduction in space may not be possible.

The Astronauts for NASA's Artemis 2 mission to fly around the moon have arrived at the Kennedy Space Center in Florida, just five days before their historic mission is scheduled to lift off.

The Artemis II countdown will begin March 30, setting up a launch attempt on April 1 at 6:24 p.m. Eastern Time.

With bright meteors sighted over Ohio, Texas, and Europe, you might wonder what's going on. Is meteor activity really increasing, or is there just a surge in reporting?

The crew of the Artemis II mission will include the first woman and person of color to travel to deep space, ushering in a new era of representation in exploration beyond Earth.

The astronauts set to become the first lunar visitors in more than half a century arrived at their launch site Friday, joining the towering rocket that stands poised to blast off next week and send them around the moon. Artemis II Commander Reid Wiseman flew in with his three crewmates from Houston. NASA's new administrator Jared Isaacman greeted the astronauts as they emerged from their T-38 training jets at Kennedy Space Center.

Arctic sea ice levels are crucial to Earth's climate because, without the ice reflecting sunlight, more heat energy goes into the oceans.

New simulations suggest Saturn's rings formed from a shattered moon called Chrysalis, offering clues to the planet's tilt and surprisingly young rings.

A NASA X-ray telescope has captured a breathtaking portrait of a supernova remnant, revealing unseen features of the exploded star.

Scientists successfully transported a minute quantity of antimatter for the first time, opening up new possibilities for the study of the world’s most expensive substance.

The comet originated in the outer solar system and visits the inner solar system every 5.4 years.

Vital Arctic sea ice shrank to tie its lowest measured level for the winter, the season when ice grows, as a warming Earth shattered records across the continents. Arctic sea ice levels, especially in the summer, are crucial to Earth's climate because without the ice reflecting sunlight, more heat energy goes into the oceans. Wildlife, such as polar bears and seals, also depend on sea ice.

With Jane Goodall and Dian Fossey, Galdikas changed the face of science and opened the world’s eyes to how similar humans are to orangutans and other primates.

A chemical signature in a lunar rock offers new insights into what early oxygen conditions were like on the Moon.

Space is extremely dangerous, but people can still do more than robotic explorers can – in terms of technical achievements and inspiring public interest.