Search query: ago
Categories: All Categories
13142 records searched, 769 records found, 20 matches displayed
< Previous 20 articles Next 20 articles >
Search Hints:
- Use a + (plus sign) or - (minus sign) to include or exclude a word: +mars -venus
- Use a ? (question mark) as a wildcard for a single letter: te?t (test,text)
- Use a * (asterisk) as a wildcard for multiple letters: he*t (heat, heart)
- Use a ~ (tilde) to expand word endings: meteor~ (meteorite, meteorid, meteorology)
Most frequent words for articles published in the last 45 days:
developed (95),
climate (85),
team (83),
species (75),
cells (74),
used (72),
human (64),
help (61),
change (60),
water (60),
years (60),
data (57),
energy (55),
such (53),
carbon (51),
discovered (50),
time (48),
like (47),
materials (46),
even (44)
Published Explosive volcanic eruption produced rare mineral on Mars - Explosive Volcanic Eruption Produced Rare Mineral on Mars


Planetary scientists have an answer to a mystery that's puzzled the Mars research community since NA...
Published Discovery of extinct prehistoric reptile that lived among dinosaurs - Discovery of Extinct Prehistoric Reptile that Lived Among Dinosaurs


Researchers have discovered a new extinct species of lizard-like reptile that belongs to the same an...
Published Ancient DNA reveals Asian ancestry introduced to East Africa in early modern times - Ancient DNA reveals Asian ancestry introduced to East Africa in early modern times


The largest-yet analysis of ancient DNA in Africa, which includes the first ancient DNA recovered fr...
Published Shaking the dinosaur family tree: How did 'bird-hipped' dinosaurs evolve? - Shaking the Dinosaur Family Tree: How Did 'Bird-Hipped' Dinosaurs Evolve?


Researchers have conducted a new analysis of the origins of 'bird-hipped' dinosaurs -- the group whi...
Published Homo sapiens likely arose from multiple closely related populations - Homo sapiens likely arose from multiple closely related populations



In testing the genetic material of current populations in Africa and comparing against existing foss...
Published Geneticists discover hidden 'whole genome duplication' that may explain why some species survived mass extinctions - Geneticists Discover Hidden 'Whole Genome Duplication' That May Explain Why Some Species Survived Mass Extinctions



Geneticists have unearthed a major event in the ancient history of sturgeons and paddlefish that has...
Published Was plate tectonics occurring when life first formed on Earth? - Was Plate Tectonics Occurring When Life First Formed on Earth?



Researchers used small zircon crystals to unlock information about magmas and plate tectonic activit...
Published Revealing the genome of the common ancestor of all mammals - Revealing the Genome of the Common Ancestor of All Mammals


An international team has reconstructed the genome organization of the earliest common ancestor of a...
Published Apollo rock samples capture key moments in the Moon's early history - Apollo Rock Samples Reveal Key Moments in the Moon's Early History


Volcanic rock samples collected during NASA's Apollo missions bear the isotopic signature of key eve...
Published Cave excavation pushes back the clock on early human migration to Laos - Cave Excavation Pushes Back the Clock on Early Human Migration to Laos



Fifteen years of archaeological work in the Tam Pa Ling cave in northeastern Laos has yielded a reli...
Published Human migration out of Africa may have followed monsoons in the Middle East - Human Migration Out of Africa May Have Followed Monsoons in the Middle East


A new study by geoscientists and climatologists provides evidence that summer monsoons from Asia and...
Published Here today, gone tomorrow: How humans lost their body hair - Here Today, Gone Tomorrow: How Humans Lost Their Body Hair


Orangutans, mice, and horses are covered with it, but humans aren't. Why we have significantly less...
Published Early Pacific seafarers likely latched onto El Nino, other climate patterns - Early Pacific Seafarers Likely Latched onto El Nino, Other Climate Patterns


Researchers employed computer simulations and climatic data to help them explore the travels that le...
Published First evidence indicating dinosaur respiratory infection - First Evidence Indicating Dinosaur Respiratory Infection


Scientists have discovered the first evidence of a unique respiratory infection in the fossilized re...
Published Fleshing out the bones of Quetzalcoatlus, Earth's largest flier ever - Fleshing out the Bones of Quetzalcoatlus, Earth's Largest Flier Ever


Though discovered more than 45 years ago, fossils of Earth's largest flying animal, Quetzalcoatlus, ...
Published Fossils of a saber-toothed top predator reveal a scramble for dominance leading up to 'the Great Dying' - Fossils of a Saber-Toothed Top Predator Reveal a Scramble for Dominance Leading up to 'the Great Dying'



A tiger-sized saber-toothed creature called Inostrancevia has previously only been found in Russia....
Published Megalodon was no cold-blooded killer - Megalodon was No Cold-Blooded Killer



How the megalodon, a shark that went extinct 3.6 million years ago, stayed warm was a matter of spec ...
Published Ancient ice reveals mysterious solar storm - Ancient Ice Reveals Mysterious Solar Storm


Through analysis of ice cores from Greenland and Antarctica, a research team has found evidence of a...
Published Nullarbor rocks reveal Australia's transformation from lush to dust - Nullarbor Rocks Reveal Australia's Transformation from Lush to Dust



Researchers have discovered how long ago the Australian Nullarbor plain dried out, with a new approa ...
Published Global map of lunar hydrogen: Data confirms role water played in moon's formation - Global Map of Lunar Hydrogen: Data Confirms Role Water Played in Moon's Formation



Using data collected over two decades ago, scientists have compiled the first complete map of hydrog ...