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Showing posts from April, 2021

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Star Betelgeuse - A red supergiant in the constellation Orion

One fascinating star is Betelgeuse, a red supergiant located in the constellation Orion. Here are some intriguing facts about it: 1. Size and Volume: Betelgeuse is immense—if placed at the center of our solar system, it would extend past the orbit of Mars. 2. Variability: It is a pulsating variable star, meaning its brightness changes over time; it has been observed to vary in brightness over several months. 3. Life Cycle: Betelgeuse is nearing the end of its life cycle and is expected to explode as a supernova within the next million years, a relatively short time in astrophysical terms. 4. Distance: It is located approximately 640 light-years away from Earth. 5. Cultural Significance: Betelgeuse has been significant in many cultures and is commonly referred to as the “Shoulder of the Hunter” in the constellation Orion. 6. Color Indicator: Its reddish hue signifies a cooler surface temperature compared to other stars, which gives it a distinctive appearance. Betelgeuse con...

Small galaxies likely played important role in evolution of the Universe

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Using cosmic-ray neutron bursts to understand gamma-ray bursts from lightning

Measuring the Moon's nano dust is no small matter

Black hole-neutron star collisions may help settle dispute over Universe's expansion

Asteroid that hit Botswana in 2018 likely came from Vesta, scientists say

Astronomers detect hydroxyl molecule signature in an exoplanet atmosphere

Icy clouds could have kept early Mars warm enough for rivers and lakes

Seismicity on Mars full of surprises, in first continuous year of data

Radar satellites can better protect against bushfires and floods

A breakthrough astrophysics code rapidly models stellar collisions

Beyond space-age tech: Hybrid material moves next-generation transport fuel cells closer

Mars has right ingredients for present-day microbial life beneath its surface, study finds

The science of spin: Asteroseismologists confirm older stars rotate faster than expected

Using exoplanets as dark matter detectors

Mars' changing habitability recorded by ancient dune fields in Gale crater

ALMA discovers rotating infant galaxy with help of natural cosmic telescope

Astronomers release new all-sky map of Milky Way's outer reaches

NASA's Perseverance Mars rover extracts first oxygen from Red Planet

Carbon dioxide-rich liquid water in ancient meteorite

Bubble with titanium trigger titanic explosions

Enormous flare from sun's nearest neighbor breaks records

Outback radio telescope discovers dense, spinning, dead star

Astronauts' mental health risks tested in the Antarctic

Stone skipping techniques can improve reentry of space vehicles

NASA's Ingenuity Mars Helicopter succeeds in historic first flight

A new super-Earth detected orbiting a red dwarf star

Scientists may detect signs of extraterrestrial life in the next 5 to 10 years

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Surprise twist suggests stars grow competitively

Fast radio bursts shown to include lower frequency radio waves than previously detected

AI pinpoints local pollution hotspots using satellite images

New NASA visualization probes the light-bending dance of binary black holes

Baked meteorites yield clues to planetary atmospheres

Satellite map of human pressure on land provides insight on sustainable development

Fast-spinning black holes narrow the search for dark matter particles

Telescopes unite in unprecedented observations of famous black hole

Stellar feedback and an airborne observatory; scientists determine a nebula younger than believed

Study warns of 'oxygen false positives' in search for signs of life on other planets

New approach to centuries-old 'three-body problem'

Atom interferometry demonstrated in space

Spotting cows from space

Amounts of organic molecules in planetary systems differ from early on

Ocean bacteria release carbon into the atmosphere

Search for sterile neutrinos: It's all about a bend in the curve

Life on Venus? First we need to know more about molecules in the atmosphere

New research reveals secret to Jupiter's curious aurora activity

Caught speeding: Clocking the fastest-spinning brown dwarfs

Curiosity rover explores stratigraphy of Gale crater

NASA's NICER finds X-ray boosts in the Crab Pulsar's radio bursts

Discovery of rare 'quadruply imaged quasars' can help solve cosmological puzzles

Giant radio pulses from pulsars are hundreds of times more energetic than previously believed

More than 5,000 tons of extraterrestrial dust fall to Earth each year

Mars didn't dry up in one go

Asteroid crater on Earth provides clues about Martian craters

First transiting exoplanet's 'chemical fingerprint' reveals its distant birthplace

Scientists bolster evidence of new physics in Muon g-2 experiment

New study ties solar variability to the onset of decadal La Nina events

Upcoming Space Shows

From stardust to pale blue dot: Carbon's interstellar journey to Earth

Distant, spiralling stars give clues to the forces that bind sub-atomic particles