Astronomy



January 24, 2021

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Astronomy definition is - the study of objects and matter outside the earth's atmosphere and of their physical and chemical properties. The Difference Between astronomy and astrology. Astronomy.com is for anyone who wants to learn more about astronomy events, cosmology, planets, galaxies, asteroids, astrophotography, the Big Bang, black holes.

Magnetic Waves Explain Mystery of Sun's Outer Layer

Jan. 22, 2021 — Researchers combined observations from a telescope in New Mexico, the United States, with satellites located near Earth to identify a link between magnetic waves in the chromosphere and areas of ...

Solar System Formation in Two Steps

Jan. 21, 2021 — Researchers have discovered that a two-step formation process of the early Solar System can explain the chronology and split in volatile and isotope content of the inner and outer Solar ...
Jan. 21, 2021 — Astronomers have detected the first Jupiter-like planet without clouds or haze in its ...

Search for Axions from Nearby Star Betelgeuse Comes Up Empty

Jan. 21, 2021 — A search for axions from nearby star Betelgeuse has come up empty, significantly narrowing the search for hypothetical dark matter ...
updated 10:32am EST
Jan. 21, 2021 — Scientists have just shown that the influence of Saturn's satellites can explain the tilt of the rotation axis of the gas giant. Their work also predicts that the tilt will ...

Saturn's Moon Titan: Largest Sea Is 1,000-Feet Deep

Jan. 21, 2021 — Far below the gaseous atmospheric shroud on Saturn's largest moon, Titan, lies Kraken Mare, a sea of liquid methane. Astronomers have estimated that sea to be at least 1,000-feet deep near its center ...
Jan. 21, 2021 — Scientists show evidence that nitrogen acquired during Earth's formation came from both the inner and outer regions of the protoplanetary disk. The study has implications for ...

Testing the Waters: Analyzing Different Solid States of Water on Other Planets and Moons

Jan. 19, 2021 — Scientists develop theoretical models to predict the presence of clathrate hydrates outside Earth, shedding light on the evolution of other ...

Exploring the Solar Wind With a New View of Small Sun Structures

Jan. 19, 2021 — Scientists have combined NASA data and cutting-edge image processing to gain new insight into the solar structures that create the Sun's flow of high-speed solar wind. This first look at relatively ...

Astronomers Dissect the Anatomy of Planetary Nebulae Using Hubble Space Telescope Images

Jan. 19, 2021 — Images of two iconic planetary nebulae taken by the Hubble Space Telescope are revealing new information about how they develop their dramatic ...

Cosmic Beasts and Where to Find Them

Jan. 19, 2021 — Two giant radio galaxies have been discovered with South Africa's powerful MeerKAT telescope. These galaxies are thought to be amongst the largest single objects in the ...
Jan. 18, 2021 — Astronomers discover that the core mass of exoplanet WASP-107b is much lower than previously thought possible for a ...

Researchers Rewind the Clock to Calculate Age and Site of Supernova Blast

Jan. 15, 2021 — Astronomers are winding back the clock on the expanding remains of a nearby, exploded star. By using NASA's Hubble Space Telescope, they retraced the speedy shrapnel from the blast to calculate a ...

X-Rays Surrounding 'Magnificent 7' May Be Traces of Sought-After Particle

Jan. 15, 2021 — Theoretical physicists suggest that never-before-observed particles called axions may be the source of unexplained, high-energy X-ray emissions surrounding a group of neutron ...

Galaxies Hit Single, Doubles, and Triple (Growing Black Holes)

Jan. 14, 2021 — When three galaxies collide, what happens to the huge black holes at the centers of each? A new study using NASA's Chandra X-ray Observatory and several other telescopes reveals new information ...

Mapping Our Sun's Backyard

Jan. 14, 2021 — Astronomers have curated the most complete list of nearby brown dwarfs to date thanks to discoveries made by thousands of volunteers participating in the Backyard Worlds citizen science project. The ...

Giant Map of the Sky Sets Stage for Ambitious DESI Survey

Jan. 14, 2021 — Astronomers using images from Kitt Peak National Observatory and Cerro Tololo Inter-American Observatory have created the largest ever map of the sky, comprising over a billion galaxies. The ninth ...

Doubling the Number of Known Gravitational Lenses

Jan. 14, 2021 — Data from the DESI (Dark Energy Spectroscopic Instrument) Legacy Imaging Surveys have revealed over 1200 new gravitational lenses, approximately doubling the number of known lenses. Discovered using ...

Burst of Light April 15, 2020 Likely Magnetar Eruption in Nearby Galaxy

Jan. 13, 2021 — On April 15, 2020, a brief burst of high-energy light swept through the solar system, triggering instruments on many NASA spacecraft. Scientists think the blast came from a supermagnetized stellar ...

Could We Harness Energy from Black Holes?

Jan. 13, 2021 — Physicists have found a new way to extract energy from black holes by breaking and rejoining magnetic field lines near the event ...

Quasar Discovery Sets New Distance Record

Jan. 12, 2021 — Astronomers have discovered the most distant quasar yet found. The bright quasar, powered by a supermassive black hole at the core of a galaxy, is seen as it was only 670 million years after the Big ...

An 'Old Faithful' Active Galaxy: Black Hole Rips Away at Star

Jan. 12, 2021 — Yellowstone National Park's Old Faithful geyser regularly blasts a jet of boiling water high in the air. Now, an international team of astronomers has discovered a cosmic equivalent, a distant ...
Jan. 11, 2021 — Scientists believe that planets like Earth bob in a sea of gravitational waves that spread throughout the universe. Now, an international team has gotten closer than ever before to detecting those ...
Jan. 11, 2021 — It is well known that the expansion of the universe is accelerating due to a mysterious dark energy. Within galaxies, stars also experience an acceleration, though this is due to some combination of ...
Jan. 11, 2021 — Galaxies begin to 'die' when they stop forming stars, but until now astronomers had never clearly glimpsed the start of this process in a far-away galaxy. Using the Atacama Large ...

Chandra X-Ray Observatory Studies Extraordinary Magnetar

Jan. 8, 2021 — In 2020, astronomers added a new member to an exclusive family of exotic objects with the discovery of a magnetar. New observations from NASA's Chandra X-ray Observatory help support the idea ...

Striped or Spotted? Winds and Jet Streams Found on the Closest Brown Dwarf

Jan. 7, 2021 — Using high-precision brightness measurements from NASA's TESS space telescope, astronomers found that the nearby brown dwarf Luhman 16B's atmosphere is dominated by high-speed, global winds ...

Astronomers Agree: Universe Is Nearly 14 Billion Years Old

Jan. 4, 2021 — From an observatory high above Chile's Atacama Desert, astronomers have taken a new look at the oldest light in the universe. Their observations, plus a bit of cosmic geometry, suggest that the ...
Astronomy
Dec. 28, 2020 — Astronomers are studying black holes that could have formed in the early universe, before stars and galaxies were born. Such primordial black holes (PBHs) could account for all or part of dark ...

A Blazar in the Early Universe

Dec. 22, 2020 — Observations with the continent-wide Very Long Baseline Array (VLBA) reveal previously unseen details in a jet of material ejected from the core of a galaxy seen as it was when the universe was only ...

Key Clues to Understanding the Death of Stars

Dec. 22, 2020 — New research has found that by studying all three 'flavors' involved in a supernova, they've unlocked more clues as to how and why stars ...

How Nearby Galaxies Form Their Stars

Dec. 21, 2020 — How stars form in galaxies remains a major open question in astrophysics. A new study sheds new light on this topic with the help of a Researchers find that flares drive a planets atmospheric ...

Multi-Messenger Astronomy Offers New Estimates of Neutron Star Size and Universe Expansion

Dec. 21, 2020 — A new study finds that neutron stars are typically about 11.75 kilometers in radius and provides a novel calculation of the Hubble ...
  • Galaxies Hit Single, Doubles, and Triple (Growing Black Holes)
  • Mapping Our Sun's Backyard
  • Giant Map of the Sky Sets Stage for Ambitious DESI Survey
  • Doubling the Number of Known Gravitational Lenses
Wednesday, January 13, 2021
  • Burst of Light April 15, 2020 Likely Magnetar Eruption in Nearby Galaxy
  • Could We Harness Energy from Black Holes?
  • Quasar Discovery Sets New Distance Record
  • An 'old Faithful' Active Galaxy: Black Hole Rips Away at Star
Monday, January 11, 2021
  • 'Galaxy-Sized' Observatory Sees Potential Hints of Gravitational Waves
  • Measurements of Pulsar Acceleration Reveal Milky Way's Dark Side
  • ALMA Captures Distant Colliding Galaxy Dying out as It Loses the Ability to Form Stars
  • Chandra X-Ray Observatory Studies Extraordinary Magnetar
Thursday, January 7, 2021
  • Striped or Spotted? Winds and Jet Streams Found on the Closest Brown Dwarf
  • Astronomers Agree: Universe Is Nearly 14 Billion Years Old
Monday, December 28, 2020
  • Primordial Black Holes and the Search for Dark Matter from the Multiverse
  • A Blazar in the Early Universe
  • Key Clues to Understanding the Death of Stars
Monday, December 21, 2020
  • How Nearby Galaxies Form Their Stars
  • The Upside of Volatile Space Weather
  • Multi-Messenger Astronomy Offers New Estimates of Neutron Star Size and Universe Expansion
  • Recently Discovered Comet Seen During 2020 Total Solar Eclipse
  • Compressive Fluctuations Heat Ions in Space Plasma
Thursday, December 17, 2020
  • 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
  • Astronomers Detect Possible Radio Emission from Exoplanet
  • A Pair of Lonely Planet-Like Objects Born Like Stars
Tuesday, December 15, 2020
  • Device Mimics Life's First Steps in Outer Space
  • The Farthest Galaxy in the Universe
  • Powerful Electrical Events Quickly Alter Surface Chemistry on Mars, Other Planetary Bodies
  • Water on Mars Not as Widespread as Previously Thought
Thursday, December 10, 2020
  • Exoplanet Around Distant Star Resembles Reputed 'Planet Nine' In Our Solar System
  • A Look at the Sun's Dusty Environment
  • Space Weather Discovery Puts 'habitable Planets' At Risk
  • New Superhighway System Discovered in the Solar System
Tuesday, December 8, 2020
  • Dark Coating Can Reduce Satellite Reflectivity
  • Image-Based Navigation Could Help Spacecraft Safely Land on the Moon
  • Aluminium Alloy Research Could Benefit Manned Space Missions
Friday, December 4, 2020
  • Researchers Uncover Key Clues About the Solar System's History
  • Supercomputer Simulations Could Unlock Mystery of Moon's Formation
  • Leaving So Soon? Unusual Planetary Nebula Fades Mere Decades After It Arrived
  • Gaia Space Telescope Measured the Acceleration of the Solar System
  • Scientists Peer Into the 3D Structure of the Milky Way
  • Astronomers to Release Most Accurate Data Ever for Nearly Two Billion Stars
  • Voyager Spacecraft Detect New Type of Solar Electron Burst
Wednesday, December 2, 2020
  • 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
  • Experiments Unravelling the Mystery of Mars' Moon Phobos
  • New Hubble Data Explains Missing Dark Matter
  • Earth Faster, Closer to Black Hole, in New Map of Galaxy
  • Fast-Moving Gas Flowing Away from Young Star Caused by Icy Comet Vaporization
  • Puzzling 'cold Quasar' Forming New Stars in Spite of Active Galactic Nucleus
Wednesday, November 25, 2020
  • New Insights on Health Effects of Long-Duration Space Flight
  • Space Travel Can Adversely Impact Energy Production in a Cell
  • Blast from the Past
Monday, November 23, 2020
  • Galaxy Encounter Violently Disturbed Milky Way
  • Growing Interest in Moon Resources Could Cause Tension
  • Milky Way Family Tree
  • Field Geology at Mars' Equator Points to Ancient Megaflood
Wednesday, November 18, 2020
  • Blue Ring Nebula: 16-Year-Old Cosmic Mystery Solved, Revealing Stellar Missing Link
  • Cosmic Flashes Come in All Different Sizes
  • Building Blocks of Life Can Form Long Before Stars
  • Scientists Expand Space Instrument's Capabilities
  • NASA's SpaceX Crew-1 Astronauts Headed to International Space Station
Friday, November 13, 2020
  • History of Temperature Changes in the Universe Revealed
  • Escape from Mars: How Water Fled the Red Planet
  • Birth of Magnetar from Colossal Collision Potentially Spotted for First Time
Wednesday, November 11, 2020
  • Tree Rings May Hold Clues to Impacts of Distant Supernovas on Earth
  • Dark Matter from the Depths of the Universe
  • Researchers Model Source of Eruption on Jupiter's Moon Europa
  • Radioactive Elements May Be Crucial to the Habitability of Rocky Planets
  • Black Hole or No Black Hole: On the Outcome of Neutron Star Collisions
  • The Universe Is Getting Hot, Hot, Hot, a New Study Suggests
  • Mining Rocks in Orbit Could Aid Deep Space Exploration
Monday, November 9, 2020
  • First Brown Dwarf Discovered by Radio Observations Confirmed
  • Water May Be Naturally Occurring on All Rocky Planets
  • Stellar Flares Can Lead to Diminishment of a Planet's Habitability
  • Final Dance of Unequal Black Hole Partners
  • Has the Hidden Matter of the Universe Been Discovered?
  • Seeing Dark Matter in a New Light
  • About Half of Sun-Like Stars Could Host Rocky, Potentially Habitable Planets
  • Astronomers Discover Clues That Unveil the Mystery of Fast Radio Bursts
Thursday, November 5, 2020
  • Clay Subsoil at Earth's Driest Place May Signal Life on Mars
  • Detection of a Short, Intense Radio Burst in Milky Way
  • Microbial Space Travel on a Molecular Scale
  • Supersonic Winds, Rocky Rains Forecasted on Lava Planet
Monday, November 2, 2020
  • New Remote Sensing Technique Could Bring Key Planetary Mineral Into Focus
  • First Light on a Next-Gen Astronomical Survey Toward a New Understanding of the Cosmos
  • Water on Ancient Mars
  • Asteroid's Scars Tell Stories of Its Past
  • Most Isolated Massive Stars Are Kicked out of Their Clusters
Thursday, October 29, 2020

Astronomy Vs Astrology

  • Where Were Jupiter and Saturn Born?
  • Measuring the Expansion of the Universe: Researchers Focus on Velocity
  • Black Hole 'family Portrait' Is Most Detailed to Date
  • Juno Data Indicates 'sprites' Or 'elves' Frolic in Jupiter's Atmosphere
  • Astronomers Discover Activity on Distant Planetary Object
  • How Dark Matter in Galaxies Is Distributed
Tuesday, October 27, 2020

Astronomy

  • Astronomers Are Bulging With Data
  • Gran Telescopio Canarias Finds the Farthest Black Hole That Belongs to a Rare Family of Galaxies
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A constellation is a grouping of stars that represents one of the 88 divisions of the celestial sphere as defined by the International Astronomical Union. Many constellations are derived from old traditional asterisms, which are star patterns within a constellation. An example: the Big Dipper is an asterism inside of the Ursa Major constellation.

Seasons listed are for mid-northern latitudes. For southern latitudes, flip the season listed. For example, if a constellation is listed as best viewed in the summer, in the southern hemisphere the constellation would be best viewed in the winter and would be upside-down. Circumpolar constellations are visible year-round in their hemisphere.

Constellations shown with a symbol are the Zodiac constellations.

Antlia
Air Pump

Aquarius
Water Bearer

Ara
Altar

Auriga
Charioteer

Caelum
Chisel

Cancer
Crab

Canis Major
Greater Dog

Capricornus
Goat

Cassiopeia
Andromeda's mom

Cepheus
Ethiopia King

Chamaeleon
Chamaeleon

Columba
Dove

Corona Australis
Southern Crown

Corvus
Crow

Crux
Southern Cross

Delphinus
Dolphin

Draco
Dragon

Eridanus
River

Gemini
Twins

Hercules
Hercules

Hydra
Water Monster

Indus
Indian

Leo
Lion

Lepus
Hare

Lupus
Wolf

Lyra
Harp

Microscopium
Microscope

Astronomy Definition

Musca
Fly

Octans
Octant

Orion
Hunter

Pegasus
Winged Horse

Phoenix
Phoenix

Pisces
Fishes

Puppis
Stern

Reticulum
Reticle

Sagittarius
Archer

Sculptor
Sculptor

Serpens
Serpent

Taurus
Bull

Triangulum
Triangle

Tucana
Toucan

Ursa Minor
Little Bear

Astronomy Jobs

Virgo
Virgin

Astronomy Club

Vulpecula
Fox