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By Jackie Wattles, CNN (CNN) — One of the most closely watched astronaut missions of recent memory came to a dramatic close this week as NASA’s Suni Williams and Butch Wilmore made their triumphant return from the International Space Station. Originally expected to spend just eight days in orbit, the duo ultimately stayed 286 days

By Julianna Bragg, CNN (CNN) — Around 34 million years ago, the ancestors of modern iguanas likely embarked on what may be the longest overwater journey undertaken by a nonhuman, land-dwelling vertebrate species. Starting off the epic trek from the western coast of North America, these iguanas traveled nearly 5,000 miles (8,000 kilometers) — one-fifth

By Taylor Nicioli, CNN (CNN) — A remarkable Early Jurassic record has been hiding in plain sight for 20 years on a slab of rock displayed at a high school in Biloela, Australia, according to a new study. While researchers knew the 1.5-meter-long (about 5-foot-long) slab was around 200 million years old and home to

By Katie Hunt, CNN (CNN) — Violent supernovas may have caused two of Earth’s largest mass extinctions that have never been completely explained, according to a theory put forward in new research. During the final stages in the life of a gargantuan star, its death throes culminate in a powerful thermonuclear blast — a supernova

By Ashley Strickland, CNN (CNN) — Astronomers have made the surprising discovery of oxygen and elements like heavy metals in the most distant known galaxy. The galaxy is 13.4 billion light-years away, meaning it formed in the early days of the universe. Astronomers believe the big bang created the universe 13.8 billion years ago. The

By Laura Paddison, CNN (CNN) — A North Dakota jury on Wednesday found Greenpeace liable for millions of dollars in damages to a giant pipeline company in relation to protests against the Dakota Access Pipeline nearly a decade ago. Dallas-based Energy Transfer Partners sued Greenpeace for $300 million in 2019, accusing the environmental group of

By Hilary Whiteman, CNN (CNN) — A report considered the world’s most trusted source of climate updates has laid out the parlous state of a planet that has recorded its 10 hottest years over the last decade. The World Meteorological Organization’s State of the Global Climate report lists alarming records that scientists say should shock

CNN By Jackie Wattles and Ashley Strickland, CNN (CNN) — NASA’s Suni Williams and Butch Wilmore — who gained international attention as their planned short stay in space stretched into a more than nine-month, politically fraught mission — are finally home. Williams and Wilmore, alongside NASA’s Nick Hague and cosmonaut Aleksandr Gorbunov of Russia’s Roscosmos

By Lianne Kolirin, CNN (CNN) — It has been a dramatic change of fortunes for the blobfish. Back in 2013, the gelatinous sea creature was declared the world’s ugliest animal. But now it has been voted New Zealand’s “fish of the year” in a competition aimed at raising awareness of the country’s marine life and

By Laura Paddison, CNN (CNN) — A high stakes $300 million lawsuit brought by a giant pipeline company against the environmental group Greenpeace is drawing to a conclusion in a small courthouse in North Dakota. After three weeks of hearings, the case is now in the hands of the jury. What’s decided could bankrupt Greenpeace’s

By Jackie Wattles, CNN (CNN) — Firefly Aerospace, the Texas-based company that conducted a pristine moon landing with its Blue Ghost spacecraft earlier this month, is declaring the historic mission over after achieving “100 percent” of its objectives. The feat marks the first “fully successful” commercial operation on the moon, the company said Monday. Blue

By Ashley Strickland, CNN (CNN) — After decades of searching, astronomers have uncovered some of the strongest evidence yet of exoplanets orbiting Barnard’s Star, the nearest single star system to Earth. The four planets are classified as sub-Earths because each one is about 19% to 34% the mass of Earth, according to new research. “It’s

By Taylor Nicioli, CNN (CNN) — While parts of the Earth experienced a total lunar eclipse early Friday, a spacecraft on the moon captured the spectacle from a different perspective — a solar eclipse that appeared as a fiery ring in space. The Blue Ghost lunar lander, which has been on the moon since the

By Jackie Wattles, CNN (CNN) — A crew of astronauts who will take over duties on the International Space Station from NASA’s Suni Williams and Butch Wilmore — allowing the duo to return home after a days-long journey turned into a nine-month, politically charged trip — have arrived at the orbiting laboratory. The Crew-10 mission,

By Ashley Strickland, CNN (CNN) — Over the past decade, scientists have detected a puzzling phenomenon: radio pulses coming from within our Milky Way galaxy that would pulse every two hours, like a cosmic heartbeat. The long radio blasts, which lasted between 30 and 90 seconds, appeared to come from the direction of the Ursa

By Ella Nilsen, CNN (CNN) — President Donald Trump’s first month in office has worried federal and state officials alike tasked with overseeing the West’s all-important water supply. The Bureau of Reclamation — the federal agency tasked with managing America’s largest dams, including Hoover and Glen Canyon on the Colorado River — is facing as

CNN By Ashley Strickland, CNN (CNN) — Sky-gazers across the Western Hemisphere will be in for a celestial treat this week when the full moon appears to turn crimson during a total lunar eclipse. The eclipse will be visible in western African and western Europe, the Americas, eastern Australia, New Zealand, northern Japan and eastern

By Katie Hunt, CNN (CNN) — Trees depicted in famous artworks across a range of styles follow the same mathematical rules as their real-life counterparts, scientists have found. The math concept hidden in this tree art — geometric shapes known as fractals — is apparent in branching patterns in nature and may be key to

CNN By Ashley Strickland, CNN (CNN) — Sky-gazers across the Western Hemisphere will be in for a celestial treat this week when the full moon appears to turn crimson during a total lunar eclipse. The eclipse will be visible in western African and western Europe, the Americas, eastern Australia, New Zealand, northern Japan and eastern