The flecks of rock were brought back to Earth by the Japanese space mission Hayabusa2 in December 2020.
Tag Archives: Solar System
Killer Asteroids Are Hiding in Plain Sight. A New Tool Helps Spot Them.
Researchers have built an algorithm that can scan old astronomical images for unnoticed space rocks, helping to detect objects that could one day imperil Earth.
Total Lunar Eclipse and Blood Moon 2022: How to Watch
On Sunday night, Earth’s shadow will fall over the moon and make our natural satellite turn blood red.
Hubble Telescope Zooms In on the Biggest Comet Ever Spotted
The space observatory helped scientists make a more precise measurement of the comet, which has a mass of 500 trillion tons and an appearance like burned toast.
The First Quadruple Asteroid: Astronomers Spot a Space Rock With 3 Moons
Astronomers had already spotted two other rocks orbiting the asteroid known as 130 Elektra, and think more quadruple systems are out there.
Astronomers Find a New Trojan Asteroid Sharing Earth’s Orbit
The Trojan asteroid 2020 XL5, which follows the same path around the sun as our planet, was revealed only after a decade of searching.
A New Map of the Sun’s Local Bubble
At the edge of a vast region devoid of gas and dust, scientists find an explanation for “how all nearby star formation began.”
How and Where to Watch the Quadrantid Meteor Shower and More That Peak in 2022
Find a dark place. Lay back, look up and see what the cosmos has to offer.
Geminid Meteor Shower: How to Watch Its Peak in Night Skies
A picture from the meteor shower in 2020 highlights how brilliant this winter sky show can be.
How to Watch Nasa’s Launch to Jupiter
The elaborate 12-year journey of the robotic spacecraft will offer close encounters with some of the solar system’s least understood objects.
Why NASA Is Launching a Robotic Archaeologist Named Lucy
In a vast odyssey across the solar system, the mission will study asteroids known as Trojans that may contain secrets of how the planets ended up in their current orbits.
The Rock That Ended the Dinosaurs Was Much More Than a Dino Killer
In seeking the origin story of the Chicxulub impactor, scientists hope to also unlock secrets about the origin of life itself.
2 Red Objects Were Found in the Asteroid Belt. They Shouldn’t Be There.
The space rocks may have come from beyond Neptune, and potentially offer hints at the chaos of the early solar system.
Will the Next Space-Weather Season Be Stormy or Fair?
As another 11-year cycle of solar activity begins, scientists debate how violent our stellar friend is likely to be.
Lyrid Meteor Shower 2021: How to Watch
Meteor showers can light up night skies from dusk to dawn, and if you’re lucky you might be able to catch a glimpse.
Oumuamua: It Came From Another Solar System
A piece of an extrasolar Pluto may have passed through our cosmic neighborhood, a new study suggests.
Once Upon a Time on Mars
A dune buggy is about to set off on behalf of its human owners to fulfill a primordial yearning.
Perseverance’s eyes see a different Mars

Enlarge / Perseverance’s two Mastcam-Z imagers (in the gray boxes) are part of the rover’s remote sensing mast. (credit: NASA)
The seven minutes of terror are over. The parachute deployed; the skycrane rockets fired. Robot truck goes ping! Perseverance, a rover built by humans to do science 128 million miles away, is wheels-down on Mars. Phew.
Percy has now opened its many eyes and taken a look around.
The rover is studded with a couple dozen cameras—25, if you count the two on the drone helicopter. Most of them help the vehicle drive safely. A few peer closely and intensely at ancient Martian rocks and sands, hunting for signs that something once lived there. Some of the cameras see colors and textures almost exactly the way the people who built them do. But they also see more. And less. The rover’s cameras imagine colors beyond the ones that human eyes and brains can come up with. And yet human brains still have to make sense of the pictures they send home.
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Hunting for a Giant Black Hole, Astronomers Found a Nest of Darkness
No Gargantua dwells at the heart of stellar cluster NGC 6397. Instead, a few dozen smaller black holes seem to be swarming around in there, throwing their considerable masses around.
Seven Hundred Leagues Beneath Titan’s Methane Seas
Mars, Shmars; this voyager is looking forward to a submarine ride under the icebergs on Saturn’s strange moon.
Earth to Voyager 2: After a Year in the Darkness, We Can Talk to You Again
NASA’s sole means of sending commands to the distant space probe, launched 44 years ago, is being restored on Friday.
Aliens Must Be Out There
Why aren’t we looking for them?
Missions to Mars, the Moon and Beyond Await Earth in 2021
Here’s a preview of what to expect in space and astronomy in the year to come.
A Winter Solstice, a Meteor Shower, Jupiter and Saturn Walk Into Your Night Sky
One day that has room for three distinct astronomical events.
Christmas Star 2020: The ‘Great’ Saturn and Jupiter Conjunction
A celestial meet-cute will unfold before our eyes on Monday. Here’s why you should be excited about that.
China Moon Mission Brings Lunar Rocks to Earth, and New Competition to Space
The Chang’e-5 mission’s success highlights the progress of China’s space program, and growing rivalry with the United States.
Outer Space Just Got a Little Brighter
The universe is not as black as astronomers once thought.
Jupiter and Saturn Head for Closest Visible Alignment in 800 Years
On Dec. 21, Jupiter and Saturn will appear to be no more than a dime’s width apart in the night sky. The last time that could be seen was in 1226.
Japan’s Hayabusa2 Asteroid Journey Ends With a Hunt in Australia’s Outback
The Hayabusa2 mission cements Japan’s role in exploring the solar system, but finding its asteroid cargo presents one last challenge.
A ‘Front-Row Seat’ to the Birth of a Comet
Astronomers are watching an object transform into a hyperactive comet that will head toward the inner solar system in the coming decades.
China to Collect Moon Rocks in a Mission Launching Soon
It has been four decades since lunar samples were brought to Earth, and the Chang’e-5 spacecraft’s bounty could have great scientific value.
Arecibo Observatory, a Great Eye on the Cosmos, Is Going Dark
The radio telescope in Puerto Rico has to come down before it collapses.
Leonid Meteor Shower: Best Time to See and How to Watch
Meteor showers can light up night skies from dusk to dawn, and if you’re lucky you might be able to catch a glimpse.
Video Shows NASA’s OSIRIS-REX Mission Crunch Asteroid Bennu
The spacecraft succeeded in pogo-sticking off the space rock, hinting that it may have been able to capture a large sample to bring back to Earth.
When to Watch NASA’s OSIRIS-REX Mission to Bennu Asteroid
The spacecraft will attempt to suck up rocks and dirt from the asteroid, which could unlock secrets of the solar system and could aid humanity’s ability to divert one that might slam into Earth.
Orionids Meteor Shower 2020: Watch It Peak in Night Skies
Meteor showers can light up night skies from dusk to dawn, and if you’re lucky you might be able to catch a glimpse.
On Venus, Cloudy With a Chance of Microbial Life
Astrobiologists shift their gaze, and speculations, to Earth’s broiling sister planet.
Is There a Black Hole in Our Backyard?
Astrophysicists have recently begun hatching plans to find out just how weird Planet Nine might be.
Perseid Meteor Shower 2020: Watch It Peak Tonight
Meteor showers can light up night skies from dusk to dawn, and if you’re lucky you might be able to catch a glimpse.
Too Much Mars? Let’s Discuss Other Worlds
Two veteran space journalists discuss why so much attention and budget seems to be directed to the red planet.
Coming of Age on Mars
In a new book, planetary scientist Sarah Stewart Johnson recalls how the Red Planet drew her to become a scientist.
Why the ‘Super Weird’ Moons of Mars Fascinate Scientists
What’s the big deal about little Phobos and tinier Deimos?
Closest Pictures Ever Taken of Sun Show Tiny Campfire Flares
Images of the new phenomenon were captured by Solar Orbiter, a joint European-NASA mission to study the sun.
Comet NEOWISE: How to See It in Night Skies
Enjoy it while you can. The frozen ball of ice won’t return to the inner solar system for 6,800 years.
Small Worlds With Lava Oceans Might Have Given Us Meteorites
Researchers propose a new model to explain the formation of most of the meteorites that make it to Earth.
Going Viral, or Not, in the Milky Way
Is the pandemic a rehearsal for our own cosmic mortality?
Jupiter’s Biggest Moons Started as Tiny Grains of Hail
A new model offers an explanation for how the Galilean satellites formed around the solar system’s largest world.
How to See Comet SWAN in Night Skies
Fresh from the outer solar system, the cosmos offers us a show that’s trailing a 10 million-mile tail.
This NASA Mission May Cause an Artificial Meteor Shower
A study says the DART mission’s collision with an asteroid near Earth may liberate enough debris to reach Earth’s atmosphere.
Eta Aquarids: Watch Halley’s Comet’s Meteor Shower Peak in Night Skies
Meteor showers can light up night skies from dusk to dawn, and if you’re lucky you might be able to catch a glimpse.