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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...

Blazar variability

Galactic Pyrotechnics From 23 Million Light Years Away

Giant magnetic ropes seen in Whale Galaxy's halo

Image: Hubble views a galaxy with an active center

New study investigates properties of the Melotte 105 cluster

Exploring the Night Sky with Hubble’s Caldwell Catalog

US astronaut sets record for longest spaceflight by a woman

Mars 2020 rover to seek ancient life, prepare human missions

Astronaut Christina Koch Poised to Make History Again

China launches powerful rocket in boost for 2020 Mars mission

Deep eclipses detected in the cataclysmic variable J0130

Calculating the time it will take spacecraft to find their way to other star systems

Calculating the time it will take spacecraft to find their way to other star systems

Waiting for Betelgeuse: what's up with the tempestuous star?

Waiting for Betelgeuse: what's up with the tempestuous star?

China to complete Beidou competitor to GPS with new launches

New nano-barrier for composites could strengthen spacecraft payloads

Morocco's Anti-Atlas Mountains

'Ring of fire' eclipse wows across Asia

Our favorite holiday gift? A box of Apollo moon soil

LAMOST first data release provides fundamental parameters of nearly 30,000 M dwarfs

Astronomers describe a violent black hole outburst that provides new insight into galaxy cluster evolution

The citizen scientists who helped map Bennu

Researchers make new discoveries set to reveal the geology of planets outside our solar system

Massive gas disk raises questions about planet formation theory

Massive gas disk raises questions about planet formation theory

Massive gas disk raises questions about planet formation theory

Stellar Snowflake Cluster

Deaf people at risk of being 'excluded from astronomy'

Astronomer probes 'DNA' of twin stars to reveal family history of the Milky Way

Massive gas disk raises questions about planet formation theory

Astronomers study peculiar kinematics of multiple stellar populations in Messier 80

Supermassive black hole at the center of our galaxy may have a friend

Nightside barrier gently brakes 'bursty' plasma bubbles

Boeing capsule returns to Earth after aborted space mission

After mission failure, Boeing Starliner returning to Earth early

Europe marks 40th anniversary of first Ariane rocket launch

Ultrashort x-ray technique will probe conditions found at the heart of planets

The 'cores' of massive galaxies had already formed 1.5 billion years after the Big Bang

The 'cores' of massive galaxies had already formed 1.5 billion years after the Big Bang

Ultrashort x-ray technique will probe conditions found at the heart of planets

The 'cores' of massive galaxies had already formed 1.5 billion years after the Big Bang

The 'cores' of massive galaxies had already formed 1.5 billion years after the Big Bang

ESO observations reveal black holes' breakfast at the cosmic dawn

ESO observations reveal black holes' breakfast at the cosmic dawn

ESO observations reveal black holes' breakfast at the cosmic dawn

ESO observations reveal black holes' breakfast at the cosmic dawn

ESO observations reveal black holes' breakfast at the cosmic dawn

Nightside barrier gently brakes 'bursty' plasma bubbles

Boeing's Starliner to return to land in 48 hours: Boeing

Image: Hubble's close-up of spiral's disk, bulge

Capturing alien comets: Simulating rogue bodies on their journey through the solar system

Hubble’s Close-Up of Spiral’s Disk, Bulge

Early trouble for Boeing Starliner on key space mission

Spitzer studies a stellar playground with a long history

Video: ExoMars parachute extraction tests

International Space Station computer gets a heart transplant

Boeing's Starliner crew capsule launches on first space flight

Ethiopia celebrates launch of first satellite

Boeing sends 'Rosie' dummy to space in key crewless mission

NASA maps inner Milky Way, sees cosmic 'candy cane'

NASA maps inner Milky Way, sees cosmic 'candy cane'

NASA maps inner Milky Way, sees cosmic 'candy cane'

NASA maps inner Milky Way, sees cosmic 'candy cane'

'Cotton candy' planet mysteries unravel in new Hubble observations

Nearby pulsar's gamma-ray 'halo' linked to antimatter puzzle

Nearby pulsar's gamma-ray 'halo' linked to antimatter puzzle

Nearby pulsar's gamma-ray 'halo' linked to antimatter puzzle

Fireballs: mail from space

Nearby pulsar's gamma-ray 'halo' linked to antimatter puzzle

Fermi mission links nearby pulsar's gamma-ray 'halo' to antimatter puzzle

The 'cores' of massive galaxies had already formed 1.5 billion years after the Big Bang

Asteroid collisions trigger cascading formation of subfamilies, study concludes

A real-life deluminator for spotting exoplanets by reflected starlight

Ap­proach to make quicker and more ex­act ana­lyses of fire­ball ob­ser­va­tions

Pulsars observed for the first time from South America

Groundbreaking astronaut glove for exploring the moon and Mars

WISE1013+6112 is one of the most luminous infrared galaxies, study finds

This Week in NASA History: 3rd Hubble Servicing Mission – Dec. 19, 1999

ESO observations reveal black holes' breakfast at the cosmic dawn

NASA's Mars 2020 rover completes its first drive

Boeing's Starliner crew capsule makes space debut this week

GISMO instrument maps inner Milky Way, sees cosmic 'candy cane'

New NASA-funded CubeSat poised to take Earth's temperature from space

NASA's Webb telescope to search for young brown dwarfs and rogue planets

New clues on dark matter from the darkest galaxies

Europe's exoplanet hunter reaches orbit around Earth

Europe's exoplanet hunter reaches orbit around Earth

Galaxy Gathering Brings Warmth

Parkes radio telescope observations shed more light on the mode switching phenomenon in PSR J0614+2229

A warm space station welcome for cool new hardware

Europe powers up for third and fourth Orion spacecraft

Why some planets eat their own skies

European planet-studying mission launches from South America

Europe's exoplanet hunter set for blast-off from Earth

Boeing sends first crew capsule to ISS this week

Distant Milky Way-like galaxies reveal star formation history of the universe

Distant Milky Way-like galaxies reveal star formation history of the universe

Distant Milky Way-like galaxies reveal star formation history of the universe

Galaxy gathering brings warmth

SDO sees new kind of magnetic explosion on sun

ESO telescope images stunning central region of Milky Way, finds ancient star burst

ESO telescope images stunning central region of Milky Way, finds ancient star burst

ESO telescope images stunning central region of Milky Way, finds ancient star burst

SDO sees new kind of magnetic explosion on sun

Distant Milky Way-like galaxies reveal star formation history of the universe

Capturing shooting stars over Hawaiʻi

Carbon cocoons surround growing galaxies

Carbon cocoons surround growing galaxies

Carbon cocoons surround growing galaxies

Carbon cocoons surround growing galaxies

Researcher studies yeast to protect astronauts from space radiation

The Canadarm2 robotic arm with the Dextre robotic hand

Glitch delays launch of Europe's exoplanet hunter

Short-lived light sources discovered in the sky

Short-lived light sources discovered in the sky

Video: OPS-SAT, ESA's flying lab, open to all

Mercury's volcanic activity—or lack of it—could help astronomers find other Earth-like worlds

Meteorites lend clues to solar system's origin

Exoplanets can be made less habitable by stars' flares

Exoplanets can be made less habitable by stars' flares

Exoplanets can be made less habitable by stars' flares

Exoplanets can be made less habitable by stars' flares

3-D print a piece of Mars for the holidays

Very Large Telescope images stunning central region of Milky Way, finds ancient star burst

Houston, Texas on the Gulf Coast

Carbon cocoons surround growing galaxies—ALMA spots earliest environment pollution in the universe

No 'clouded' judgments: Geostationary satellite an alternative to monitor land surfaces

Astronomers present a concept for the next NASA flagship mission

Researchers develop in-silico model of solar storms toward early warning system

2017 meteor was a 'grazing fireball'

Image: Hubble's celestial peanut

Planetary nebula NGC 3132 investigated with MUSE

Satnav watching over rugby players

Researchers discover exoplanets can be made less habitable by stars' flares

How does our Milky Way galaxy get its spiral form?

RIT and IAR observe pulsars for the first time from South America

Finding a killer electron hot spot in Earth's Van Allen radiation belts

Finding a killer electron hot spot in Earth's Van Allen radiation belts

Newfound Martian aurora actually the most common; sheds light on Mars' changing climate

Breathable atmospheres may be more common in the universe than we first thought

Video: OPS-SAT, the flying laboratory

Hubble Views Galaxy’s Dazzling Display

Image: Hubble views galaxy's dazzling display

Researchers estimate the mass of the Milky Way to be 890 billion times that of our sun

Scientists map a planet's global wind patterns for the first time, and it's not Earth

X marks the spot: NASA selects site for asteroid sample collection

Calling radio amateurs: Help find OPS-SAT!

Scientists map a planet's global wind patterns for the first time, and it's not Earth

An upcoming ESA mission is going to remove one piece of space junk from orbit

Astronomers discover two new galaxy protoclusters

Searching explanations for mysterious structures in protoplanetary disks

Researchers participate in study that adds new detail to merger models

NASA's Juno navigators enable Jupiter cyclone discovery

Image: The galactic dance of NGC 5394 and NGC 5395

Mars Express tracks the phases of Phobos

Video: ESA's short film, 'The Burn'

Water common -- yet scarce -- in exoplanets

Water common -- yet scarce -- in exoplanets

Water common -- yet scarce -- in exoplanets

Water common -- yet scarce -- in exoplanets

Scientists map Mars' global wind patterns for the first time

Scientists map Mars' global wind patterns for the first time

Newfound Martian aurora actually the most common; sheds light on Mars' changing climate

NASA's NICER delivers best-ever pulsar measurements, first surface map

Newfound Martian aurora actually the most common; sheds light on Mars' changing climate

Newfound Martian aurora actually the most common; sheds light on Mars' changing climate

Short-lived light sources discovered in the sky

A Treat for the International Space Station's First Crew

Planet-mass objects in extragalactic systems

Planet-mass objects in extragalactic systems

Research group confirm planet-mass objects in extragalactic systems

Planet-mass objects in extragalactic systems

Planet-mass objects in extragalactic systems

Martian aurora offers climate change clues, research reports

Planet-mass objects in extragalactic systems

Planet-mass objects in extragalactic systems

Planet-mass objects in extragalactic systems

The return to Venus and what it means for Earth

NRL-camera aboard NASA spacecraft confirms asteroid phenomenon

Revealing the physics of the Sun with Parker Solar Probe

Jeff Bezos's Blue Origin rocket makes 12th test flight

ALMA spots most distant dusty galaxy hidden in plain sight

ALMA spots most distant dusty galaxy hidden in plain sight

ALMA spots most distant dusty galaxy hidden in plain sight

ALMA spots most distant dusty galaxy hidden in plain sight

ALMA spots most distant dusty galaxy hidden in plain sight

ALMA spots most distant dusty galaxy hidden in plain sight

Brilliance at Night: The Americas in Darkness

Engineers pull off daring rescue of OSIRIS-REx asteroid mission

Refueling satellites in space with the help of a robot

New NASA ebook reveals insights of Earth seen at night from space

A new way to measure cosmic black holes

Relativistic jet of the blazar S5 0836+710 investigated in detail

X-ray satellite XMM-Newton celebrates 20 years in space

X-ray satellite XMM-Newton celebrates 20 years in space

Image: Holiday Kristall

NASA's treasure map for water ice on Mars

Second stellar population found in Milky Way's thick disk

Two rovers to roll on Mars again: Curiosity and Mars 2020

Water common—yet scarce—in exoplanets

Ice in motion: Satellites capture decades of change

Stardust from red giants

Stardust from red giants

Stardust from red giants

Earth's Changing Ice

Stardust from red giants

Explaining the 'tiger stripes' of Saturn's moon Enceladus

NASA says core stage of next Moon rocket now ready

How planets may form after dust sticks together

Explaining the tiger stripes of Saturn's moon Enceladus

How planets may form after dust sticks together

A neutron star with an unusual magnetic field structure

Progress 73 Cargo Craft Departs the Station

How Enceladus got its stripes

How Enceladus got its stripes

Image: Hubble spots galaxy's dramatic details

SN Now: The final installment of SCaN Now

IRAS 18379–1707 is a metal-poor high-velocity star, observations find

New reentry CubeSat in orbit

Russian supply ship docks with International Space Station

How did supermassive black holes grow so fast?

SpaceX delivers 'mighty mice,' worms, robot to space station

Sun corona in unprecedented clarity

Sun corona in unprecedented clarity

Studying water quality with satellites and public data

Hubble Spots Galaxy’s Dramatic Details

Research suggests that hibernation is a likely option to make deep space exploration a reality

We're using lasers and toaster-sized satellites to beam information faster through space

SpaceX Dragon heads to space station with NASA science

Russian supply ship lifts off to International Space Station

NASA's OSIRIS-REx mission explains Asteroid Bennu's mysterious particle events

OSIRIS-REx mission explains Bennu's mysterious particle events

SpaceX launches caring robot, beer malt and 'mighty mice'

Mice in space: NASA's latest experiment

Luca Parmitano Works to Upgrade a Cosmic Particle Detector

Life on Mars? Europe commits to groundbreaking mission to bring back rocks to Earth

Image: Thermal enclosure for Orion

Scientists reveal potential new class of X-ray star system research

Evidence suggests some super-puffs might be ringed exoplanets

Why is the sun's atmosphere so hot? Spacecraft starts to unravel our star's mysteries

New clues about the origin of stellar masses

Astronomers probe the nature of a peculiar pulsar wind nebula

Signs of life: New field guide aids astronomers' search

Closest-ever approach to the sun gives new insights into the solar wind

Parker Solar Probe traces solar wind to its source on sun's surface: coronal holes

Sun's close-up reveals atmosphere hopping with highly energetic particles

Hidden giant planet revealed around tiny white dwarf star

SpaceX delays space station delivery due to high wind

Sun's close-up reveals atmosphere hopping with highly energetic particles

NASA's OSIRIS-REx in the midst of site selection

NASA's Parker Solar Probe sheds new light on the sun