{"id":630082,"date":"2026-04-26T15:54:10","date_gmt":"2026-04-26T15:54:10","guid":{"rendered":"https:\/\/www.newsbeep.com\/ca\/630082\/"},"modified":"2026-04-26T15:54:10","modified_gmt":"2026-04-26T15:54:10","slug":"scientists-discover-a-new-meteor-shower-from-a-mysterious-crumbling-asteroid","status":"publish","type":"post","link":"https:\/\/www.newsbeep.com\/ca\/630082\/","title":{"rendered":"Scientists Discover a New Meteor Shower From a Mysterious Crumbling Asteroid"},"content":{"rendered":"

\"2019This composite image shows the 2019 Geminid meteors and a meteorite-dropping fireball captured by a camera on La Palma Island, Spain. Credit: Global Meteor Network.<\/p>\n

A meteor cluster reveals an asteroid disintegrating near the Sun. These observations help uncover hidden asteroids and explain how space objects break apart.<\/p>\n

Scientists use global camera networks to study meteors, revealing how dust and debris from comets and asteroids behave and evolve in the solar system. A 2026 study identified a new meteor cluster likely caused by an asteroid breaking apart from intense solar heat, offering insights into hidden near-Earth objects and planetary defense.<\/p>\n

Across the Earth, every night, thousands of automated stargazers are waiting to take pictures of shooting stars. I am one of the scientists who study these meteors.<\/p>\n

Most movies and news alerts focus on large asteroids that could destroy the Earth. And your phone notifies you every few months that an object nine washing machines wide is going to just narrowly skim past. However, the small dust and rubble that enter our atmosphere daily tell an equally interesting story.<\/p>\n

My planetary science colleagues and I<\/a> use camera observations of the night sky to better understand dust, car-sized asteroids, and debris from comets in our solar system.<\/p>\n

Discovery of a New Meteor Cluster<\/p>\n

In a study published in March 2026, I searched through millions of meteor observations collected by all-sky camera networks based in Canada, Japan, California, and Europe and found a small, recently formed cluster. The 282 meteors associated with this cluster tell the story of an asteroid that got a little too close to the Sun.<\/p>\n

\"NearThe near-Earth asteroid Bennu (approximately 550 yards wide) ejected particles from its surface, which were observed by NASA\u2019s OSIRIS-REx spacecraft. Credit: NASA\/Goddard\/University of Arizona\/Lockheed Martin<\/p>\n

When a sand-sized crumb of space rock hits our atmosphere, it heats up almost instantly, vaporizing its surface layer and turning it into an electrically charged gas. The whole fragment starts to glow \u2014 this is what we call a meteor. If the object is larger, like a boulder, and brighter, it\u2019s called a bolide or a fireball. On average, these objects hit our atmosphere going over 15 miles per second. For small dust or sand-sized objects, the whole process lasts only a fraction of a second before they completely disappear.<\/p>\n

Most of these sand-sized fragments in the solar system originate from comets<\/a> \u2013 cold, icy objects from the outer reaches of the solar system. As comets pass by the Sun, their icy components turn to gas, releasing tons of dust. This is why comets are often called \u201cdirty snowballs\u201d and appear fuzzy in telescopic images.<\/p>\n

\"Churyumov<\/a>Comet 67P\/Churyumov\u2013Gerasimenko releasing gas and dust as its orbit takes it close to the Sun. Credit: ESA\/Rosetta\/NAVCAMComets vs Asteroids: Origins and Composition<\/p>\n

Asteroids, on the other hand, are leftovers from the early solar system<\/a> that formed closer to the Sun. They are dry and rocky, and do not have the same ices that give comets their characteristic tails.<\/p>\n

Astronomers call an asteroid or comet \u201cactive\u201d when it sheds dust, gas or larger fragments. This activity is caused by some external force on the object in space, like heat from the Sun, a small impact, or when asteroids spin too fast and fly apart.<\/p>\n

Understanding and identifying activity helps scientists better understand how these objects change over time.<\/p>\n

Causes of Activity in Space Objects<\/p>\n

For comets, sublimation of ices \u2013 when solid ice turns directly into gas, skipping the liquid phase \u2013 is the primary culprit. However, for asteroids, the reason for activity can vary greatly.<\/p>\n

For example, NASA\u2019s OSIRIS-REx mission<\/a>, which launched into space to study an asteroid named Bennu, saw activity from its surface, with heat stress and small impacts<\/a> among the leading explanations.<\/p>\n

Other sources for asteroid activity<\/a> include breakup when an asteroid spins too fast, tidal forces ripping apart asteroids during close encounters with a planet, or gas release.<\/p>\n

Detecting Activity Through Meteor Showers<\/p>\n

Researchers most commonly search for activity using telescopes. Astronomers can look for a \u201ctail\u201d or fuzziness around the object. This tail is a clear sign that there is gas and dust around the body. But there is another way to search for activity \u2013 meteor showers<\/a>.<\/p>\n

The most famous active asteroid is 3200 Phaethon<\/a>. It is the parent body of the Geminid meteor shower that occurs every year in mid-December. During past close approaches with the Sun, Phaethon released vast amounts of dust and larger fragments. These morsels of Phaethon have spread out along its entire orbit over time, leading to the present Geminid meteor stream<\/a>.<\/p>\n

Each meteor shower we observe occurs when the Earth passes through one of these debris streams. So if astronomers can detect meteor showers, they can also be used to find active objects in space.<\/p>\n

How Meteor Streams Form and Evolve<\/p>\n

At first, debris shed by an asteroid or comet travels closely together. Imagine squeezing a single drop of food dye into a moving stream of water: Initially, the dye stays in a tight, concentrated cloud. But as it flows, the water\u2019s swirling currents pull at the dye, causing it to spread out and fade.<\/p>\n

In space, the gravitational tugs from passing planets act like those currents<\/a>. They pull on the individual meteor fragments in slightly different ways, causing the once-tight stream to gradually drift apart until it completely dilutes into the background dust of our solar system<\/a>.<\/p>\n<\/p>\n

In a study published in March 2026 in the Astrophysical Journal, I used millions of observations of meteors to search for recent, unknown activity<\/a> from asteroids near the Earth. I found one clear cluster of 282 meteors that stood out.<\/p>\n

Insights From a Newly Found Meteor Stream<\/p>\n

What makes this discovery so exciting is that we are essentially witnessing a hidden asteroid being baked to bits. This newly confirmed meteor stream follows an extreme orbit that plunges almost five times closer to the Sun than Earth does.<\/p>\n

Based on how these meteors break apart when they hit our atmosphere, we can tell they are moderately fragile, but tougher than stuff from comets. This finding tells us that intense solar heat is literally cracking the asteroid\u2019s surface, baking out trapped gases and causing it to crumble. This is likely a major source of past Phaethon activity<\/a> and the main reason the meteorites on Earth are so diverse<\/a>.<\/p>\n

Why does finding a hidden, crumbling asteroid matter? Meteor observations act as a uniquely sensitive probe that lets us study objects that are completely invisible to traditional telescopes.<\/p>\n

Importance for Planetary Science and Defense<\/p>\n

Beyond solving astronomical mysteries, analyzing this debris helps us understand the physical evolution of asteroids and comets in our solar system. More importantly, it reveals hidden populations of near-Earth asteroids, which is vital information for planetary defense<\/a>.<\/p>\n

The new meteor shower\u2019s parent asteroid remains elusive. However, NASA\u2019s NEO Surveyor mission<\/a>, launching in 2027, offers a promising solution. This space telescope, dedicated to planetary defense and the discovery of dark, hazardous, Sun-approaching asteroids, will be the ideal tool for searching for the shower\u2019s origin.<\/p>\n

Reference: \u201cAsteroidal Activity among Meteor Datasets: Confirmed New \u201cRock-comet\u201d Stream and Search for a Tidal-disruption Signature\u201d by Patrick M. Shober, 27 March 2026, The Astrophysical Journal.
DOI: 10.3847\/1538-4357\/ae4bde<\/a><\/p>\n

Adapted from an article originally published in The Conversation<\/a>.\"The<\/p>\n

Never miss a breakthrough: Join the SciTechDaily newsletter.<\/a>
Follow us on Google<\/a> and Google News<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"This composite image shows the 2019 Geminid meteors and a meteorite-dropping fireball captured by a camera on La…\n","protected":false},"author":2,"featured_media":630083,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[23],"tags":[27101,49,48,1593,40447,307,66,306],"class_list":{"0":"post-630082","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-space","8":"tag-asteroid","9":"tag-ca","10":"tag-canada","11":"tag-comet","12":"tag-meteors","13":"tag-nasa","14":"tag-science","15":"tag-space"},"_links":{"self":[{"href":"https:\/\/www.newsbeep.com\/ca\/wp-json\/wp\/v2\/posts\/630082","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.newsbeep.com\/ca\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.newsbeep.com\/ca\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/ca\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/ca\/wp-json\/wp\/v2\/comments?post=630082"}],"version-history":[{"count":0,"href":"https:\/\/www.newsbeep.com\/ca\/wp-json\/wp\/v2\/posts\/630082\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/ca\/wp-json\/wp\/v2\/media\/630083"}],"wp:attachment":[{"href":"https:\/\/www.newsbeep.com\/ca\/wp-json\/wp\/v2\/media?parent=630082"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.newsbeep.com\/ca\/wp-json\/wp\/v2\/categories?post=630082"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.newsbeep.com\/ca\/wp-json\/wp\/v2\/tags?post=630082"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}