Radio interference from satellites is threatening astronomy
A proposed zone for testing new technologies could head off the problem. Enlarge / Radio observatories like the Green Bank Telescope in Green Bank, West Virginia, are in radio quiet zones that protect them from interference. (cr.....»»
Five things to know about how NASA"s tiny twin polar satellites will study the Arctic and Antarctic
Twin shoebox-size climate satellites will soon be studying two of the most remote regions on Earth: the Arctic and Antarctic. The NASA mission will measure the amount of heat the planet emits into space from these polar regions—information that's k.....»»
Scientists create an "optical conveyor belt" for quasiparticles
Using interference between two lasers, a research group led by scientists from RIKEN and NTT Research have created an "optical conveyor belt" that can move polaritons—a type of light-matter hybrid particle—in semiconductor-based microcavities. Th.....»»
Tiny satellites can provide significant information about space
CubeSats are satellites constructed of cubic units, or U, a bit smaller than a square tissue box, or about 10 centimeters (about 4 inches) on each side. (A 2U CubeSat, for instance, is about the size of a rectangular tissue box.) Initially developed.....»»
The ancient Egyptian goddess of the sky: How a researcher used modern astronomy to explore her link with the Milky Way
What did our ancestors think when they looked up at the night sky? All cultures ascribed special meaning to the sun and the moon, but what about the pearly band of light and shadow we call the Milky Way?.....»»
Analyst on Starlink’s rapid rise: “Nothing short of mind-blowing”
Starlink's estimated free cash flow this year is about $600 million. Enlarge / 60 Starlink satellites stacked for launch at SpaceX facility in Cape Canaveral, Florida in 2019. (credit: SpaceX) According to the research.....»»
Outdoing the dinosaurs: What we can do if we spot a threatening asteroid
Someday, an NEO will pose a threat to us. Thankfully, we have options. Enlarge / We'd like to avoid this. (credit: Science Photo Library/Andrzej Wojcicki/Getty Images) In 2005, the United States Congress laid out a clear.....»»
School"s out: how climate change threatens education
Record-breaking heat last month that prompted governments in Asia to close schools offers fresh evidence of how climate change is threatening the education of millions of children......»»
40 years later, Kontrabant 2 for ZX Spectrum is rebroadcast on FM in Slovenia
Celebrating radio waves, magnetic tape heads, and smuggled 8-bit computers. Enlarge / In 1984, the year 2000 was so promising, students made entire games promising to take you there. (credit: Radio Student) Software is.....»»
International SWOT mission can improve flood prediction
Rivers, lakes, and reservoirs are like our planet's arteries, carrying life-sustaining water in interconnected networks. When Earth's water cycle runs too fast, flooding can result, threatening lives and property. That risk is increasing as climate c.....»»
Exploring the asteroid Apophis with small satellites
The author of a disaster novel couldn't have dreamed it up any better: On a Friday, the thirteenth of all days, the potentially dangerous asteroid (99942) Apophis will come extremely close to humanity......»»
SpaceX shares footage of gorgeous orbital sunrise
SpaceX has shared footage of a stunning orbital sunrise captured during the deployment of another batch of Starlink satellites......»»
Study demonstrate improved root growth in radio-cesium contaminated soil
Researchers at the RIKEN Center for Sustainable Resource Science (CSRS) have identified a way for plants to gain resistance to cesium, a radioactive toxin that can be found in contaminated soil. After manipulating a specific biological signaling path.....»»
Radio astronomers bypass disturbing Earth"s atmosphere with new calibration technique
An international team of researchers led by astronomers from Leiden University (Netherlands) has produced the first sharp radio maps of the universe at low frequencies. Thanks to a new calibration technique, they bypassed the disturbances of the Eart.....»»
NASA is helping protect tigers, jaguars, and elephants—here"s how
As human populations grow, habitat loss threatens many creatures. Mapping wildlife habitat using satellites is a rapidly expanding area of ecology, and NASA satellites play a crucial role in these efforts. Tigers, jaguars, and elephants are a few of.....»»
Ariane 6 launches: Exolaunch"s EXOpod Nova
Europe's newest rocket soon launches, taking with it many space missions each with a unique objective, destination and team at home, cheering them on. Whether launching new satellites to look back and study Earth, peer out to deep space or test impor.....»»
Research shows bumblebee nests are overheating due to climate change, threatening future populations
As a result of the climate crisis, global warming is driving up temperatures around the world—and bumblebees, like humans, are struggling to cope with homes that can't beat the heat......»»
Fluidic telescope (FLUTE): Enabling the next generation of large space observatories
The future of space-based UV/optical/IR astronomy requires ever larger telescopes. The highest priority astrophysics targets, including Earth-like exoplanets, first generation stars, and early galaxies, are all extremely faint, which presents an ongo.....»»
The Great Observatory for Long Wavelengths (GO-LoW) proposal
Humankind has never before seen the low frequency radio sky. It is hidden from ground-based telescopes by the Earth's ionosphere and challenging to access from space with traditional missions because the long wavelengths involved (meter- to kilometer.....»»
Two small NASA satellites will measure soil moisture, volcanic gases
Two NASA pathfinding missions were recently deployed into low-Earth orbit, where they are demonstrating novel technologies for observing atmospheric gases, measuring freshwater, and even detecting signs of potential volcanic eruptions......»»
X-ray satellite XMM-Newton sees "space clover" in a new light
Astronomers have discovered enormous circular radio features of unknown origin around some galaxies. Now, new observations of one dubbed the Cloverleaf suggest it was created by clashing groups of galaxies......»»