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The limb, complete with skin, is just one of a series of remarkable finds emerging from the Tanis fossil site in the US State of North Dakota. But it's not just their exquisite condition that's turning heads - it's what these ancient specimens purport to represent. The claim is the Tanis creatures were killed and entombed on the actual day a giant asteroid struck Earth. The day 66 million years ago when the reign of the dinosaurs ended and the rise of mammals began. The BBC has spent three years filming at Tanis for a show to be broadcast on...

However, there is no need to panic; astronomers say the massive space rock will miss us by around 4.6 million miles (7.4 million kilometers). The asteroid, known as 2007 FF1, is between 360 feet and 656 feet (110 and 260 meters) in diameter, according to SpaceReference.com, a database that compiles information from NASA's Jet Propulsion Laboratory in California and the International Astronomical Union. The rock 2007 FF1 is known as an Apollo-class asteroid, of which there are around 15,000, meaning that its orbit around the sun (which takes 684 days) crosses with Earth's orbit. The asteroid is classified as potentially...

A fireball over San Francisco Bay Area on 17 Oct 2012. (NASA/Robert P. Moreno Jr) On 11 March 2022, at around 9:20 pm UTC, a small asteroid entered Earth's atmosphere. This is not unusual. Space rocks enter Earth's atmosphere all the time. What makes this asteroid so amazing is that an astronomer spotted it before it made its rendezvous with atmospheric entry. It's named 2022 EB5, and it's only the fifth asteroid we've ever managed to spot prior to impact. The object, thought to measure around two meters across (6.5 ft), was spotted by astronomer Krisztián Sárneczky of Konkoly Observatory's...

Getting to bottom of crater mystery 06/22/2003By ALEXANDRA WITZE / The Dallas Morning News ODESSA – It took two hours for Vance Holliday to travel back thousands of years. For a time machine, he drilled into the dirt of the meteor crater just west of Odessa. The deeper he went, the closer Dr. Holliday got to his goal – discovering the crater's age. When the Odessa meteorite hit, some tens of thousands of years ago, it would have been a fearsome sight. An iron rock nearly 50 feet across fell screaming from the sky, hitting with energy roughly equivalent to...

60m-year-old meteor crater mapped in North Sea Scientists have mapped a small but well-preserved crater in the North Sea formed by a meteorite they believe smacked into Earth 60 to 65 million years ago. The impact crater measures about six miles wide and sits beneath 120 feet of seawater and more than 900 feet of sediment. Researchers believe the so-called Silverpit crater was formed after the catastrophic impact near Mexico's Yucatan Peninsula that scientists suspect contributed to the extinction of the dinosaurs. "We know so little about how impact structures are created when meteorites and comets hit," said University of...

Maine Crater Related to Dino-Killer Asteroid? By Larry O'Hanlon, Discovery News April 3, 2003 — The evidence is still skimpy, but there is a chance that the dino killer asteroid was not alone when it walloped the Earth 65 million years ago. A possible second crater, at least as big or bigger than the famous Chicxulub crater off Mexico's Yucatan peninsula, may have been created by a second hit moments after Chicxulub and off the coast of Maine. "It probably is a crater, but we really don't have age data," said marine geologist Dallas Abbott Lamont-Doherty Earth Observatory at Columbia...

In late June of 1908, a fireball exploded above the remote Russian forests of Tunguska, Siberia, flattening more than 800 square miles of trees. Researchers think a meteor was responsible for the devastation, but neither its fragments nor any impact craters have been discovered. Astronomers have been left to guess whether the object was an asteroid or a comet, and figuring out what it was would allow better modeling of potential future calamities. Italian researchers now think they've found a smoking gun: The 164-foot-deep Lake Cheko, located just 5 miles northwest of the epicenter of destruction. "When we looked at...

The Yilan crater. (NASA Earth Observatory/Lauren Dauphin/Landsat data/USGS) A crescent-shaped crater in Northeast China holds the record as the largest impact crater on Earth that formed in the last 100,000 years. Prior to 2020, the only other impact crater ever discovered in China was found in Xiuyan county of the coastal province of Liaoning, according to a statement from the NASA Earth Observatory. Then, in July 2021, scientists confirmed that a geological structure in the Lesser Xing'an mountain range had formed as a result of a space rock striking Earth. The team published a description of the newfound impact crater...

For a few tense days in January of this year, astronomers were tracking a Near-Earth Object cruising towards Earth with its trajectory showing it hitting the planet in 2023, when it mysteriously changed course. The asteroid dubbed 2022 AE1 was on course to hit Earth on July 4, 2023, with astronomers predicting real damage to a local area. The asteroid was moving so fast that there was not enough time to attempt deflection and the European Space Agency (ESA) said that, worryingly, the chance of impact appeared to increase based on the first seven days of observations. The first observations...

We’ve long known a disaster took place about 66 million years ago, where in a geological instant, 75% of the plants and animals on Earth were wiped out, including all the land-roaming dinosaurs. But here’s a new detail about that event: Even though we can’t pinpoint exactly what year this disaster took place, we now know it happened during the springtime. Most scientists agree the disaster was an asteroid impact, where an asteroid at least 10 kilometers wide struck the Chicxulub region in the present-day Yucatán Peninsula in Mexico. The impact released 2 million times more energy than the most...

Elektra and its three moons. (ESO/Berdeu et al., Yang et al.) ====================================================================================== An asteroid discovered in the 19th century has just been identified as the most crowded we've ever found. It's called 130 Elektra, or just Elektra for short, and astronomers have just discovered that it has not one, nor two, but three smaller satellite companions, or moons. That not only makes it the most numerous asteroid system known to date, but demonstrates how we might find other faint, hard-to-see asteroid moons in the future. "Elektra is the first quadruple system ever detected," wrote a team of astronomers led by...

On Tuesday, February 22, Asteroid (455176) 1999 VF22 will fly past Earth at around 2:54 am EST. This object is classified as "potentially hazardous" as it gets near our planet and is fairly large, but next week's flyby is perfectly safe. The space rock won’t get closer than 5,366,000 kilometers (3,334,000 miles) – that’s almost 14 times the distance between the Earth and the Moon. NASA’s Small-Body Database gives an absolute magnitude for the object of 20.7, but without an albedo – the fraction of reflected light by the surface – it is very difficult to estimate its true size....

Elektra was first discovered in 1873, orbiting in the asteroid belt between Mars and Jupiter. Oblong-shaped and 160 miles across on its longest side, it is a relatively large asteroid and completes an orbit of the sun every five years. In 2003, the first moon was discovered orbiting Elektra, and in 2014 a second. The discoveries were interesting, but not unusual — more than 150 asteroids are known to have one or two moons, in the same way planets can have moons that are gravitationally bound to them. “Multiple moons can be found around large asteroids,” said Bin Yang, an...

Earth has officially been joined in its orbit around the Sun by a new trojan asteroid. Named 2020 XL5, this chunk of rock is only the second object of its type ever to have been conclusively identified. Its discovery suggests that perhaps Earth trojans may be more common than we knew, and offers new insights into these mysterious rocks. Like the first trojan, astronomers predict that 2020 XL5 will hang around for at least 4,000 years before zipping off to parts elsewhere. "The discovery of a second Earth trojan asteroid may enhance our knowledge of the dynamics of this elusive...

Last weekend, between dealing with Winter Storm Izzy and a torrent of work to complete, I squeezed in a viewing of Adam McKay’s Don’t Look Up. So much has been said about it in the last week or two that it felt like a moral obligation, albeit a second-tier one. This is not a movie review so much as it is a resounding thanks to the writers, cast, and crew. I commend them for making a film so long overdue with the urgency required. Be respectfully forewarned: there are many spoilers ahead. The plot is relatively straightforward: a graduate student...

The asteroid, known as 7482 (1994 PC1), is set to fly by the planet at 1:51 p.m. PT, traveling at a speed of about 43,754 mph, according to NASA. “Near-Earth #asteroid 1994 PC1 (~1 km wide) is very well known and has been studied for decades by our #PlanetaryDefense experts,” With a diameter of approximately 3,451 feet, the asteroid is more than twice the size of the Empire State Building. And while there’s no threat that the asteroid will hit our planet, NASA still considers it a “potentially hazardous object” due to a combination of size and distance from Earth....

The asteroid's orbit gets quite close to our moon's. (NASA/JPL) ************************************************************************** In a slow-moving universe, asteroids give us a rare chance to see things moving in real time. We have such a chance coming right up on the evening of Tuesday, January 18th, when 1.1-kilometer asteroid (7482) 1994 PC1 passes 1.23 million miles (1.98 million kilometers) from Earth. This is about five times the distance from Earth to the Moon, and just a shade over the distance to the anti-sunward Earth-Sun Lagrange 2 point, soon to be the home of the James Webb Space Telescope. Fortunately, both Earth and said...

Image of asteroid (7482) 1994 PC1 taken during a flyby of Earth in 1997. (Sormano Astronomical Observatory) ===================================================================== A large, rocky asteroid is going to fly by Earth next week. At 1 kilometer (3,280 feet) long, it's roughly two and a half times the height of the Empire State Building, and it's been classed a "Potentially Hazardous Asteroid" due to its size and its regular close visits to our planet. But don't worry, this month's visit is going to have a very safe clearance, with the asteroid zipping by at a distance of 1.93 million kilometers (~1.2 million miles) away...

NASA is 'Psyched' as preparations to explore a wild metallic asteroid nears launch in the Summer of 2022. It will be the first time NASA has explored a world not made primarily of rock or ice, but of metal. NASA's Christmas day launch of the highly anticipated James Webb Space Telescope (JWST) captivated those who have been looking forward to its launch. Along with JWST, however, many also await the launch of the Double Asteroid Redirection Test (DART) as it journeys to an asteroid in order to provide data about how to possibly divert the object and prevent an impact...

This is the warning of NASA-funded experts who investigated how telescopes nearly missed a 328-feet-wide asteroid that came within 43,500 miles of Earth back in 2019. The space rock, dubbed '2019 OK', was the first object of its size to get that close to our planet since 1908 — but it was only spotted 24 hours before its closest approach. The reason, the team determined, is because it was moving towards us in such a way that its motion across the night sky was counteracted by the Earth's spin. Thus — to early warning systems like Pan-STARRS1 at Hawaii's Haleakala...