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Showing posts from December, 2020

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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...

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Multi-messenger astronomy offers new estimates of neutron star size and universe expansion

Fluvial mapping of Mars

A blazar in the early universe

Key clues to understanding the death of stars

The upside of volatile space weather

How nearby galaxies form their stars

Scientists complete yearlong pulsar timing study after reviving dormant radio telescopes

Meteoric evidence for a previously unknown asteroid

Looking for dark matter near neutron stars with radio telescopes

Recently discovered comet seen during 2020 total solar eclipse

Compressive fluctuations heat ions in space plasma

Can white dwarfs help solve the cosmological lithium problem?

Artificial intelligence classifies supernova explosions with unprecedented accuracy

Unique prediction of 'modified gravity' challenges dark matter

Astronomy cast episode 589

Astronomy cast episode 590

Longest intergalactic gas filament discovered

Dark storm on Neptune reverses direction, possibly shedding a fragment

Saturn moon, Enceladus, could support life in its subsurface ocean

Characterizing cold fusion in 2D models

Astronomers detect possible radio emission from exoplanet

New type of atomic clock keeps time even more precisely

A pair of lonely planet-like objects born like stars

Device mimics life's first steps in outer space

Researchers use origami to solve space travel challenge

Mapping corals from the sky guides reef conservation

Researchers identify where giant jets from black holes discharge their energy

The farthest galaxy in the universe

Powerful electrical events quickly alter surface chemistry on Mars, other planetary bodies

One's trash, another's treasure: Fertilizer made from urine could enable space agriculture

Chance played a major role in keeping Earth fit for life

The moon controls the release of methane in Arctic Ocean

'Pizza' can help address the dark matter mystery?

Exoplanet around distant star resembles reputed 'Planet Nine' in our solar system

Water on Mars not as widespread as previously thought

A look at the sun's dusty environment

A technique to sift out the universe's first gravitational waves

'Game changer' perovskite can detect gamma rays

Space weather discovery puts 'habitable planets' at risk

New superhighway system discovered in the Solar System

Spiders in space: Without gravity, light becomes key to orientation

Experiment to test quantum gravity just got a bit less complicated

Dark coating can reduce satellite reflectivity

New sunspot cycle could be one of the strongest on record, new research predicts

Image-based navigation could help spacecraft safely land on the moon

Scientists get the lowdown on sun's super-hot atmosphere

Aluminium alloy research could benefit manned space missions

Key building block for organic molecules discovered in meteorites

Supercomputer simulations could unlock mystery of Moon's formation

Researchers uncover key clues about the solar system's history

Detecting solar neutrinos with the Borexino experiment

Gaia space telescope measured the acceleration of the Solar System

Leaving so soon? Unusual planetary nebula fades mere decades after it arrived

Physicists capture the sound of a perfect fluid

Scientists peer into the 3D structure of the Milky Way

Voyager spacecraft detect new type of solar electron burst

Astronomers to release most accurate data ever for nearly two billion stars

Chaotic early solar system collisions resembled 'Asteroids' arcade game

Supernova surprise creates elemental mystery

Best region for life on Mars was far below surface

Research suggests our galaxy's brightest gamma-ray binary system may be powered by a magnetar star

A hint of new physics in polarized radiation from the early universe

Next step in simulating the universe