Does spaceflight increase men's risk of erectile dysfunction?
Wednesday, 22 November 2023 07:00
During missions into space, astronauts are exposed to high levels of galactic cosmic radiation and weightlessness. Simulation experiments in male rats indicated that these aspects of spaceflight can negatively affect vascular tissues relevant to erectile dysfunction, even after a period of long-term recovery.
The research, which is published in The FASEB Journal, indicated that vascular alterations are induced by relatively low doses of galactic cosmic radiation and, to a lesser extent, simulated weightlessness, primarily through increases in oxidative stress. Treatment with different antioxidants could counter some of these effects.
"With manned missions to outer space planned for the coming years, this work indicates that sexual health should be closely monitored in astronauts upon their return to Earth," said corresponding author Justin D. La Favor, Ph.D., of Florida State University. "While the negative impacts of galactic cosmic radiation were long-lasting, functional improvements induced by acutely targeting the redox and nitric oxide pathways in the tissues suggest that the erectile dysfunction may be treatable."
More information: Neurovascular dysfunction associated with erectile dysfunction persists after long-term recovery from simulations of weightlessness and deep space irradiation, The FASEB Journal (2023).
North Korea says spy satellite launch successful
Wednesday, 22 November 2023 06:26
North Korea said Wednesday it had succeeded in putting a military spy satellite in orbit after two previous failures, as the United States led its allies in condemning the launch as a "brazen violation" of UN sanctions.
A rocket carrying the satellite blasted off Tuesday night from North Phyongan province and "accurately put the reconnaissance satellite 'Malligyong-1' on its orbit", state-ru Satellogic gets NOAA license for move to the United States
Tuesday, 21 November 2023 23:04
US 'strongly condemns' N. Korean space launch
Tuesday, 21 November 2023 22:32
The White House on Tuesday strongly condemned North Korea over its space launch, calling it a "brazen violation" of UN sanctions that could destabilize the region.
The launch "raises tensions, and risks destabilizing the security situation in the region and beyond," National Security Council Spokesperson Adrienne Watson said in a statement.
North Korean state media reported early Wednes As military weather satellites near end of life, DoD turns to partners for data
Tuesday, 21 November 2023 21:27
Astrolab announces first customers for commercial lunar rover mission
Tuesday, 21 November 2023 19:41
Hydrogen detected in lunar samples, points to resource availability for space exploration
Tuesday, 21 November 2023 16:19
ArianeGroup begins testing prototype of multirole Susie upper stage
Tuesday, 21 November 2023 13:49
Earth bacteria could make lunar soil more habitable for plants
Tuesday, 21 November 2023 11:44
A series of planned crewed lunar missions worldwide have inspired a new wave of research in growing plants on the moon to sustain life. A new study by Chinese agricultural scientists found that bacteria on Earth soil could offer a solution.
Published in the journal Communications Biology in early November, the study showed that three species of bacteria could increase the amount of phospho CAPSTONE marks one year in near rectilinear halo orbit
Tuesday, 21 November 2023 11:44
Terran Orbital Corporation (NYSE: LLAP) mars the one-year milestone of the CAPSTONE mission in a lunar Near Rectilinear Halo Orbit (NRHO). CAPSTONE, designed, built, and integrated by Terran Orbital and owned by Advanced Space, has demonstrated significant achievements during its mission.
CAPSTONE accomplished its primary objective within the first six months in NRHO, successfully testing Investigating the contribution of gamma-ray blazar flares to neutrino flux
Tuesday, 21 November 2023 11:44
Blazars belong to the family of active galactic nuclei called quasars. What differentiates them from quasars is that the flares ejected out of these active galactic nuclei are pointed toward the Earth. These flares contain high-energy cosmic rays which are released from the core of these galaxies as jets spanning many light years. Such cosmic rays can interact with photons to produce subatomic p University of Helsinki researchers solve cosmic conundrum
Tuesday, 21 November 2023 11:44
Our own Milky Way galaxy is part of a much larger formation, the local Supercluster structure, which contains several massive galaxy clusters and thousands of individual galaxies. Due to its pancake-like shape, which measures almost a billion light years across, it is also referred to as the Supergalactic Plane.
Most galaxies in the universe fall into one of two categories: firstly, ellipt SDI Announces New Tech Demo Competition for Government Modernization
Tuesday, 21 November 2023 11:44
The Space and Defense Innovation (SDI) team has officially announced the launch of its Ignite Competition, a pivotal event designed to bridge the gap between groundbreaking technology and the federal sector's needs. This demo competition presents an unprecedented opportunity for tech companies to directly demonstrate their innovative solutions to key federal sector experts, furthering the U.S.'s 
Cairt and Wivern Earth Explorer candidates go forward
Tuesday, 21 November 2023 10:52
ESA has reached a significant milestone in its commitment towards a deeper understanding of Earth's dynamic processes and addressing pressing environmental challenges with the selection of two new candidates – Cairt and Wivern – to progress to the next development phase as part of the process of realising the Agency’s eleventh Earth Explorer satellite mission.