Beautiful Virgin Islands

Wednesday, Aug 27, 2025

NASA Says Spaceship Successfully Deflected Asteroid In Test To Save Earth

NASA Says Spaceship Successfully Deflected Asteroid In Test To Save Earth

"DART shortened the 11 hour 55 minute orbit to 11 hours and 23 minutes," NASA chief Bill Nelson said. Speeding up Dimorphos' orbital period by 32 minutes exceeded NASA's own expectation of 10 minutes.

NASA on Tuesday said it had succeeded in deflecting an asteroid in a historic test of humanity's ability to stop an incoming cosmic object from devastating life on Earth.

The fridge-sized Double Asteroid Redirection Test (DART) impactor deliberately smashed into the moonlet asteroid Dimorphos on September 26, pushing it into a smaller, faster orbit around its big brother Didymos, said NASA chief Bill Nelson.

"DART shortened the 11 hour 55 minute orbit to 11 hours and 23 minutes," he said. Speeding up Dimorphos' orbital period by 32 minutes exceeded NASA's own expectation of 10 minutes.

"We showed the world that NASA is serious as a defender of this planet," added Nelson.

The asteroid pair loop together around our Sun every 2.1 years, and pose no threat to our planet.

But they are ideal for studying the "kinetic impact" method of planetary defense, in case an actual approaching object is ever detected.

DART's success as a proof-of-concept has made a reality of science fiction -- notably in films such as "Armageddon" and "Don't Look Up."

Astronomers rejoiced in stunning images of matter spreading out thousands of miles in the wake of the impact -- pictures collected by Earth and space telescopes, as well as a mini satellite that had traveled to the zone with DART.

Pseudo-comet


Thanks to its temporary new tail, Dimorphos, which is 530-foot (160-meter) in diameter or roughly the size of a big Egyptian pyramid, has turned into a manmade comet.

But quantifying just how well the test worked required an analysis of light patterns from ground telescopes, which took a few weeks to become apparent.

The binary asteroid system, which was around 6.8 million miles (11 million kilometers) from Earth at impact, is visible only as a single dot from the ground.

Ahead of the test, NASA scientists said the results of the experiment would reveal whether the asteroid is a solid rock, or more like a "rubbish pile" of boulders bound by mutual gravity.

If an asteroid is more solid, the momentum imparted by a spaceship will be limited. But if it is "fluffy" and significant mass is pushed at high velocity in the opposite direction to impact, there will be an additional boost.

Never actually photographed before, Dimorphos appeared as a speck of light around an hour before impact.

Its egg-like shape and craggy, boulder-dotted surface finally came into clear view in the last few moments, as DART raced toward it at roughly 14,500 miles (23,500 kilometers) per hour.

Mass extinction


Very few of the billions of asteroids and comets in our solar system are considered potentially hazardous to our planet, and none are expected in the next hundred years or so.

But wait long enough, and it will happen.

The geological record shows, for example, that a six-mile wide asteroid struck Earth 66 million years ago, plunging the world into a long winter that led to the mass extinction of the dinosaurs along with 75 percent of all species.

An asteroid the size of Dimorphos, by contrast, would only cause a regional impact, such as devastating a city.

Kinetic impact with a spaceship is just one way to defend the planet, albeit the only method possible with current technology.

Should an approaching object be detected early, a spaceship could be sent to fly alongside it for long enough to divert its path via using the ship's gravitational pull, creating a so-called gravity tractor.

Another option would be launching nuclear explosives to redirect or destroy an asteroid.

NASA believes the best way to deploy such weapons would be at a distance, to impart force without blowing the asteroid to smithereens, which could further imperil Earth.

Newsletter

Related Articles

Beautiful Virgin Islands
0:00
0:00
Close
Manhunt in Australia: Armed Anti-Government Suspect Kills Police Officers Sent to Arrest Him
China Launches World’s Most Powerful Neutrino Detector
How Beijing-Linked Networks Shape Elections in New York City
Ukrainian Refugee Iryna Zarutska Fled War To US, Stabbed To Death
Elon Musk Sues Apple and OpenAI Over Alleged App Store Monopoly
2 Australian Police Shot Dead In Encounter In Rural Victoria State
Vietnam Evacuates Hundreds of Thousands as Typhoon Kajiki Strikes; China’s Sanya Shuts Down
UK Government Delays Decision on China’s Proposed London Embassy Amid Concerns Over Redacted Plans
A 150-Year Tradition to Be Abolished? Uproar Over the Popular Central Park Attraction
A new faith called Robotheism claims artificial intelligence isn’t just smart but actually God itself
Deputy Prime Minister Angela Rayner Purchases Third Property Amid Housing Tax Reforms Debate
HSBC Switzerland Ends Relationships with Over 1,000 Clients from Saudi Arabia, Lebanon, Qatar, and Egypt
Sharia Law Made Legally Binding in Austria Despite Warnings Over 'Incompatible' Values
Italian Facebook Group Sharing Intimate Images Without Consent Shut Down Amid Police Investigation
Dutch Foreign Minister Resigns Amid Deadlock Over Israel Sanctions
Trump and Allies Send Messages of Support to Ukraine on Independence Day Amid Ongoing Conflict
China Reels as Telegram Chat Group Shares Hidden-Camera Footage of Women and Children
Sam Nicoresti becomes first transgender comedian to win Edinburgh Comedy Award
Builders uncover historic human remains in Lancashire house renovation
Australia Wants to Tax Your Empty Bedrooms
MotoGP Cameraman Narrowly Avoids Pedro Acosta Crash at Hungarian Grand Prix
FBI Investigates John Bolton Over Classified Documents in High-Profile Raids
Report reveals OpenAI pitched national ChatGPT Plus subscription to UK ministers
Labour set to freeze income tax thresholds in long-term 'stealth' tax raid
Coca‑Cola explores sale of Costa coffee chain
Trial hears dog walker was chased and fatally stabbed by trio
Restaurateur resigns from government hospitality council over tax criticism
Spanish City funfair shut after serious ride injury
Suspected arson at Ilford restaurant leaves three in critical condition
Tottenham beat Manchester City to go top of Premier League
Bank holiday heatwave to hit 30°C before remnants of Hurricane Erin arrive
UK to deploy immigration advisers to West Africa to block fake visas
Nurse who raped woman continued working for a year despite police alert
Drought forces closures of England’s canal routes, canceling boat holidays
Sweet tooth scents: food-inspired perfumes surge as weight-loss drugs suppress appetites
Experts warn Britain dangerously reliant on imported food
Family of Notting Hill Carnival murder victim call event unmanageable
Bunkers, Billions and Apocalypse: The Secret Compounds of Zuckerberg and the Tech Giants
Ukraine Declares De Facto War on Hungary and Slovakia with Terror Drone Strikes on Their Gas Lifeline
Animated K-pop Musical ‘KPop Demon Hunters’ Becomes Netflix’s Most-Watched Original Animated Film
New York Appeals Court Voids Nearly $500 Million Civil Fraud Penalty Against Trump While Upholding Fraud Liability
Elon Musk tweeted, “Europe is dying”
Far-Right Activist Convicted of Incitement Changes Gender and Demands: "Send Me to a Women’s Prison" | The Storm in Germany
Hungary Criticizes Ukraine: "Violating Our Sovereignty"
Will this be the first country to return to negative interest rates?
Child-free hotels spark controversy
North Korea is where this 95-year-old wants to die. South Korea won’t let him go. Is this our ally or a human rights enemy?
Hong Kong Launches Regulatory Regime and Trials for HKD-Backed Stablecoins
China rehearses September 3 Victory Day parade as imagery points to ‘loyal wingman’ FH-97 family presence
Trump Called Viktor Orbán: "Why Are You Using the Veto"
×