An unknown, unseen "planetary mass object" may lurk in the outer reaches of our solar system, according to new research on the orbits of minor planets to be published in the Astronomical Journal. This object would be different ...
Astronomy
Jun 22, 2017
5
2413
University of Arizona researcher Jekan Thanga is taking scientific inspiration from an unlikely source: the biblical tale of Noah's Ark. Rather than two of every animal, however, his solar-powered ark on the moon would store ...
Space Exploration
Mar 9, 2021
5
880
It is now widely accepted that the species Homo sapiens originated in Africa and eventually spread throughout the world. But did those early humans interbreed with more ancestral forms of the genus Homo, for example Homo ...
Archaeology
Sep 5, 2011
11
0
Mars once had oceans but is now bone-dry, leaving many to wonder how the water was lost. University of Arizona researchers have discovered a surprisingly large amount of water in the upper atmosphere of Mars, where it is ...
Astronomy
Nov 12, 2020
6
3741
Charlotte Pearson's eyes scanned a palm-sized chunk of ancient tree. They settled on a ring that looked "unusually light," and she made a note without giving it a second thought. Three years later, and armed with new methodology ...
Earth Sciences
Mar 30, 2020
5
1122
Scientists have discovered the brightest quasar in the early universe, powered by the most massive black hole yet known at that time. The international team led by astronomers from Peking University in China and from the ...
Astronomy
Feb 25, 2015
58
6361
If you think a Chihuahua doesn't have much in common with a Rottweiler, you might be on to something.
Archaeology
Jan 23, 2012
3
0
Once they're here, you know summer's here, too: You don't have to live in the desert Southwest for very long to learn that once the first cicadas of the year can be heard broadcasting their piercing buzz from invisible locations ...
Plants & Animals
Jun 13, 2017
0
22
Scientists have long been puzzled by the existence of so-called "buckyballs"—complex carbon molecules with a soccer-ball-like structure—throughout interstellar space. Now, a team of researchers from the University of ...
Astronomy
Nov 13, 2019
1
2167
Archaeologists working in Guatemala have unearthed new information about the Maya civilization's transition from a mobile, hunter-gatherer lifestyle to a sedentary way of life.
Archaeology
Mar 23, 2015
2
1735
