In 2015, the New Horizons space probe discovered spectacular snowcapped mountains on Pluto, which are strikingly similar to mountains on Earth. Such a landscape had never before been observed elsewhere in the Solar System. ...
Space Exploration
Oct 13, 2020
0
426
Common assumptions notwithstanding, rare species can play unique and essential ecological roles. After studying two databases that together cover all known terrestrial mammals and birds worldwide, scientists from the CNRS, ...
Plants & Animals
Oct 8, 2020
0
64
Millions of ibis and birds of prey mummies, sacrificed to the Egyptian gods Horus, Ra or Thoth, have been discovered in the necropolises of the Nile Valley. Such a quantity of mummified birds raises the question of their ...
Archaeology
Sep 22, 2020
0
238
New Juno results suggest that the violent thunderstorms taking place in Jupiter's atmosphere may form ammonia-rich hail, or 'mushballs,' that play a key role in the planet's atmospheric dynamics. This theory, developed using ...
Astronomy
Aug 5, 2020
0
162
The miniaturization of electronic components coupled with their increasing integration density has considerably expanded heat flows, which can lead to overheating. But measuring these nanometric events is difficult because ...
Nanomaterials
Jul 17, 2020
0
28
What makes ships mysteriously slow down or even stop as they travel, even though their engines are working properly? This was first observed in 1893 and was described experimentally in 1904 without all the secrets of this ...
General Physics
Jul 6, 2020
0
1384
An international collaboration bringing together over 200 scientists from 13 countries has shown that the very high-energy gamma-ray emissions from quasars, galaxies with a highly energetic nucleus, are not concentrated in ...
Astronomy
Jun 17, 2020
13
253
Meiosis is essential to sexual reproduction. For almost 15 years, it has been commonly held that retinoic acid, a molecule derived from vitamin A, triggers meiosis in mammalian germ cells. Yet, in joint articles published ...
Cell & Microbiology
May 22, 2020
0
177
A palette of colors on a silver plate: That is what the world's first color photograph looks like. It was taken by French physicist Edmond Becquerel in 1848. His process was empirical, never explained, and quickly abandoned. ...
Nanomaterials
Mar 31, 2020
0
430
For the first time, scientists have provided reliable regional estimates of land subsidence and water-level rise in the Ganges-Brahmaputra-Meghna delta. Depending on the region of the delta, water-level rise could reach 85 ...
Earth Sciences
Jan 6, 2020
0
145
