News about PaperPanda, Open Access, and Research
A streak of purple “lightning” sprawls across the cosmos in a gorgeous new image from NASA. Light and energy twist and turn in an explosive relationship between a stellar corpse known as a white dwarf and a variable red giant star called R Aquarii (R Aqr) orbiting each other out in space. NASA’s Chandra X-ray … Read more
New research gives a stark warning to richer nations that have been hoarding their supplies of COVID-19 vaccines: Doing so only has a short-term local benefit, and in the longer term leaves everyone more vulnerable to infection. Across a five-year model, scientists found that when rich countries gave away 46 percent of their COVID-19 … Read more
You might think that clouds are clouds all over Earth, but that’s not quite so. If you’re in the Southern Hemisphere, the clouds there are different, more abundant, and more reflective than clouds found in the Northern Hemisphere, a fact scientists are well familiar with, but have not been able to fully explain. Now, … Read more
Something extraordinarily bright in space is pulsing far slower than most similar cosmic objects, and it may be a strange type of neutron star that we have never seen before Space 26 January 2022 By Leah Crane A view of the Milky Way from the Murchison Widefield Array. The star icon shows the position of … Read more
A Lima zoo is racing to save dozens of seabirds, including protected penguins, left covered in oil after 6,000 barrels of crude spilled off Peru’s coast in the aftermath of the Tonga tsunami. More than 40 birds, including Humboldt penguins – listed as vulnerable by the International Union for Conservation of Nature – were brought … Read more
The ongoing volcanic eruption in Tonga began in December 2021, but it wasn’t until 5:15 pm local time on January 15, 2022, that the powerful explosion occurred. It generated an enormous cloud of ash, earthquakes, and tsunamis that reached as far as the distant coastlines of Peru on the other side of the Pacific. … Read more
Scientists observed changes in the signals coming from rapidly-spinning stars called millisecond pulsars that might point to the existence of subtle space-time ripples vibrating throughout the entire universe. Millisecond pulsars are stellar remnants that spin hundreds of times per second, producing precise radio pulses that can act as a cosmic metronome. Scientists think that ripples … Read more
The Kingdom of Tonga doesn’t often attract global attention, but a violent eruption of an underwater volcano on January 15 has spread shock waves, quite literally, around half the world. The volcano is usually not much to look at. It consists of two small uninhabited islands, Hunga-Ha’apai and Hunga-Tonga, poking about 100 meters (328 … Read more
Ever since scientists made the first detection of gravitational waves from a pair of colliding black holes in 2015, evidence has been growing that the Universe ought to be full of them. Every massive event – every black hole or neutron star merger, every supernova – should have sent gravitational waves ringing out across … Read more
Wherever there is sand and an atmosphere, prevailing winds may whip the grains into undulating shapes, pleasing to the eye with their calming repetition. Certain sand waves, with wavelengths between 30 centimeters (almost 12 inches) and several meters (around 30 feet), are known as megaripples: they’re between ordinary beach ripples and full dunes in size, … Read more