Early in human development, during the first trimester of gestation, a fetus may have XX or XY chromosomes that indicate its sex. Yet at this stage a mass of cells known as the bipotential gonad that ultimately develops into ...
Evolution
May 5, 2021
0
31
Karina Brocco French explains that sea stars are like butterflies: They go through metamorphosis.
Plants & Animals
Apr 5, 2021
0
461
Richard Branson's Virgin Orbit reached space on Sunday, eight months after the first demonstration flight of its air-launched rocket system failed, the company said.
Space Exploration
Jan 18, 2021
1
451
RIKEN developmental biologists have analyzed the transitions that precede metamorphosis in fruit fly larvae using experiments and mathematical modeling1. They have also identified the survival strategies underlying these ...
Plants & Animals
Jan 15, 2021
0
18
An international team of Swedish, Norwegian, Danish and Irish scientists has used whole genome sequencing to characterize 53 herring populations from the Atlantic Ocean and the Baltic Sea. They have developed genetic markers ...
Ecology
Dec 15, 2020
0
54
The first high-altitude test flight of SpaceX's futuristic Starship was aborted at the last second in Texas on Tuesday.
Space Exploration
Dec 9, 2020
10
63
A partial skeleton of Homo naledi represents a rare case of an immature individual, shedding light on the evolution of growth and development in human ancestry, according to a study published April 1, 2020 in the open-access ...
Archaeology
Apr 1, 2020
0
267
The identification of an insect-specific metal-sensing receptor in the gut lining highlights a possible new way to curb populations of disease-transmitting insects such as mosquitoes.
Cell & Microbiology
Mar 18, 2020
0
33
SpaceX successfully launched its latest cluster of high-speed internet satellites into orbit Monday but was unable to land its rocket booster on an autonomous ship, missing a key milestone.
Space Exploration
Feb 17, 2020
11
1022
NASA has completed the giant rocket that will take US astronauts back to the Moon, the space agency's head announced Monday, pledging the mission would take place in 2024 despite being beset by delays.
Space Exploration
Dec 9, 2019
4
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