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NASA’s Lucy Spacecraft Prepares for Second Asteroid Flyby

The spacecraft will pass within 596 miles of asteroid Donaldjohanson this weekend, testing instruments and techniques for its future Trojan asteroid encounters.

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Oxford Study Challenges Asteroid Theory of Earth's Water Origin

Comet C/2025 F2 (SWAN) Illuminates Pre-Dawn Skies Ahead of Solar Encounter

Asteroid 2024 YR4 Poses Small Risk of Lunar Impact

Solar Wind Compression Heats Jupiter's Atmosphere, Revealing Global Effects

James Webb Telescope Captures Neptune's Auroras for the First Time

Venus to Align Between Earth and Sun During Rare Astronomical Event

Saturn's Moon Count Soars to 274 with Discovery of 128 New Satellites

March 2025 Offers Rare Celestial Events, Including Total Lunar Eclipse and Northern Lights

Rare Planet Parade Offers Stunning Night Sky Views This Week

NASA’s Lucy Spacecraft Captures First Images of Asteroid Donaldjohanson

Rare Seven-Planet Alignment Visible This Week

NASA Supercomputer Reveals Spiral Structure in Solar System’s Outer Edge

Rare Planetary Alignment Visible in Night Sky on February 25

Rare Planetary Parade of Seven Planets Peaks on February 28

Rare Planetary Alignment Visible in February Night Sky

Rare Planetary Parade to Grace February Skies

Rare Planetary Alignments Grace February Skies

Six-Planet 'Parade' Graces Night Sky in Rare Viewing Opportunity

Comet ATLAS Disintegrates After Dazzling Solar Encounter

Six-Planet Alignment Dazzles Night Sky in January 2025

Ancient Interstellar Object May Have Reshaped Solar System's Planetary Orbits

January’s Planetary Parade Offers Stunning Night Sky Views

Rare Sun-Skirting Comet Visible in Southern Hemisphere Skies This Week

Comet C/2024 G3 Offers Rare Viewing Opportunity, But Visibility Remains Challenging

Rare Comet C/2024 G3 Expected to Shine as Bright as Venus

BepiColombo's Sixth Mercury Flyby Captures Stunning Close-Up Images

New 'Kiss and Capture' Theory Explains Pluto and Charon's Formation

Pluto and Charon's Formation Explained by 'Kiss and Capture' Collision

Earth Reaches Closest Point to the Sun Today, But Northern Hemisphere Remains Cold

New Study Proposes Earth's Moon Is 100 Million Years Older Than Previously Thought

Saturn’s Rings May Be as Old as the Planet, Study Suggests

Study Suggests Sun May Be Overdue for Rare and Powerful Superflare

Interstellar Object May Have Shaped Planetary Orbits in Early Solar System

Scientists Identify Two Distinct Types of Newly Discovered 'Dark Comets'

Hubble's OPAL Program Marks 10 Years of Outer Planet Observations

Jupiter Reaches Closest Point to Earth and Opposition in Rare Astronomical Event

Study Explores Potential for Rogue Planets to Join Solar System

ESA's Solar Orbiter Captures Highest-Resolution Full-Disc Images of the Sun

Mercury Retrograde Begins in Sagittarius, Impacting Travel and Communication

Solar Orbiter Captures Most Detailed Images of the Sun's Surface

Solar Orbiter Unveils Unprecedented High-Resolution Images of the Sun

Voyager 2's 1986 Flyby Revealed Misleading Data on Uranus

Northern Lights to Grace Skies Across Northern U.S. States

Parker Solar Probe Completes Final Venus Flyby for Historic Sun Mission

Voyager 1 Reestablishes Contact Using Decades-Old Transmitter

Two Comets Captivate and Disintegrate: A Cosmic Show

Comet ATLAS Disintegrates After Close Encounter with the Sun

Halloween Comet C/2024 S1 Faces Disintegration as It Nears the Sun

Orionid Meteor Shower Peaks Tonight with Halley's Comet Debris

Final Viewing Opportunity for Comet Tsuchinshan-ATLAS This Weekend

Scientists Trace 90% of Earth's Meteorites to Three Asteroid Families

Comet Tsuchinshan-ATLAS Offers Rare Viewing Opportunity Before Fading

Sun Enters Solar Maximum, Triggering Intense Space Weather

Study Reveals Origins of 70% of Earth's Meteorites

Comet Tsuchinshan-ATLAS Offers Rare Viewing Opportunity This Week

Rare Comet Tsuchinshan-ATLAS Visible Tonight for First Time in 80,000 Years

Two Comets Make Rare Appearance Near Earth This October

Comet C/2023 A3 Tsuchinshan-ATLAS Dazzles the Night Sky

Rare Comet Tsuchinshan-ATLAS Approaches Closest Point to Earth

Rare 'Comet of the Century' Offers a Spectacular October Sky Show

Webb Telescope Reveals Mysterious Gas Jets from Centaur 29P

Two Comets to Illuminate Fall Skies, Offering Rare Celestial Show

NASA's James Webb Telescope Finds Carbon Dioxide and Hydrogen Peroxide on Pluto's Moon Charon

Ancient Comet Makes Rare Return, Visible in October Skies

Rare Comet Tsuchinshan-ATLAS Graces Earth's Skies After 80,000 Years

Earth to Host Temporary Mini Moon Until November

Comet Tsuchinshan-ATLAS Approaches Perihelion, Promising Spectacular Views

Newly Discovered Planetary System Offers Glimpse into Earth's Distant Future

Comet A3 Tsuchinshan-ATLAS Set for Spectacular Show in Northern Hemisphere

Earth to Temporarily Capture a 'Mini-Moon' This Weekend

Northern Lights May Be Visible in Multiple U.S. States Tonight Due to Solar Activity

Comet Tsuchinshan-ATLAS to Reach Closest Point to Sun, Potentially Visible to Naked Eye

Primordial Black Holes May Pass Through Solar System Every Decade

Earth to Temporarily Gain a 'Mini-Moon' Starting September 29

MIT Study Suggests Primordial Black Holes Could Be Detected by Mars' Orbital Wobble

Earth to Experience Two Unique Asteroid Events This Month

Earth May Have Had Rings 466 Million Years Ago

Ancient Stellar Flyby Reshaped Outer Solar System's Orbits

BepiColombo Captures Stunning Images During Fourth Mercury Flyby

New Evidence Reveals Recent Volcanic Activity on the Moon

Giant Asteroid Impact Reoriented Jupiter's Moon Ganymede 4 Billion Years Ago

New Kuiper Belt Discoveries Challenge Solar System Formation Theories

Asteroid Impact 20 Times Larger Than Dino-Killer Tilted Ganymede's Axis

ESA's JUICE Spacecraft Executes Historic Lunar-Earth Flyby

New Study Traces Dinosaur-Killing Asteroid's Origin to Outer Solar System

Mars and Jupiter to Appear Closest in Sky Until 2033

Gaia Telescope Uncovers Hidden Moons Around Hundreds of Asteroids

New Study Reveals Unexpected Geological Link Between Venus and Early Earth

Solar Storms: Intense Flares and Cannibal CME Threaten Earth's Communications

Precise Dating Reveals Moon's Largest Crater Formed 4.338 Billion Years Ago

Curiosity Rover Uncovers Pure Sulfur Crystals on Mars

NASA Launches CubeSats to Investigate Solar Radio Signals

NASA's Artemis Mission Faces Radiation Risks from Solar Events

Massive Solar Storms Hit Mars, Revealing Radiation Challenges for Future Missions

New Study Links Ancient Climate Change to Interstellar Cloud Passage

Study Reveals Ancient Interstellar Cloud's Impact on Earth's Climate

Groundbreaking Images of Jupiter's Volcanic Moon Io Captured from Earth

NASA's Lucy Discovers Complex History of Asteroid Dinkinesh and Its Binary Moon Selam

Sunspot AR3664 Returns, Potential for More Powerful Solar Storms