Revolving doors weaken SEC oversight, finds research

A study conducted in the Brazilian state of Amazonas has demonstrated that small amounts of Amazonian dark earth (ADE)—an anthropogenic soil created by ancient Amazonian populations—can increase the height and diameter of the pink trumpet tree (Handroanthus avellanedae) by up to 55% and 88%, respectively. This tree also occurs in the Atlantic Forest. The research is published in the journal BMC Ecology and Evolution.

A technology that could propel crewed missions to Mars and robotic spacecraft throughout the solar system was recently put to the test at NASA's Jet Propulsion Laboratory in Southern California. On Feb. 24, for the first time in years and at power levels exceeding any previous test in the United States, a team fired up an electromagnetic thruster that runs on lithium metal vapor.

Zinc is an essential trace element that controls myriad biological processes. The delicate balance of its concentration in the body is critical; both deficiency and excess are linked to severe pathological states such as impaired immunity, delayed wound healing, and sensory dysfunctions. However, it remains unclear how zinc dysregulation leads to these cellular defects at the molecular level.

There’s no sign reading “home sweet home” in the hangar where the X‑59 now sits, but the sentiment is unmistakable among those tending to the quiet supersonic aircraft. Located at NASA’s Armstrong Flight Research Center in Edwards, California, the X-59 hangar was built in 1968 but looks like new thanks to a full renovation and […]