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Keyword: comet

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  • Hubble telescope captures the best photo yet of the interstellar comet Borisov [tr]

    10/17/2019 6:47:34 AM PDT · by C19fan · 15 replies
    UK Daily Mail ^ | October 17, 2019 | Ian Randall
    An Astronomer has released our best and sharpest look to date at Comet Borisov, the second ever-known interstellar object to visit our solar system, using NASA's Hubble Space Telescope to capture the new image. The comet was travelling at around 110,000 miles per hour when University of California Los Angeles astronomer David Jewitt studied it on October 12, 2019, when it was 260 million miles away. The comet — which is named after the Crimean astronomer who discovered it — will pass within around 177,000 miles (285,000 kilometres) of the Earth in early December this year. It is trailing behind...
  • Astronomers find cyanide gas in interstellar object 2I/Borisov

    10/08/2019 8:22:09 AM PDT · by BenLurkin · 21 replies
    phys.org ^ | 10/07/2019 | Mat Williams
    C/2019 Q4 (Borisov) this summer provided renewed opportunities to study material left by outgassing. Using data gathered by the William Herschel Telescope (WHT), an international team of astronomers found that 2I/Borisov contains cyanide. Since comets and asteroids are essentially material left over from the formation of a planetary system, these studies will allow scientists to place constraints on the physical and chemical processes involved in the formation of extrasolar planets. Basically, it's like being able to study extrasolar planets without having to go there physically. Prof. Fitzsimmons told Universe Today, materials from other planetary systems, delivered to our doorstep—or at...
  • INCOMING Mystery object approaching us from interstellar space could be ALIEN spacecraft...

    09/19/2019 10:07:15 AM PDT · by Red Badger · 123 replies
    The Sun UK ^ | 19 Sep 2019, 16:57Updated: 19 Sep 2019, 17:11 | Harry Pettit, Senior Digital Technology and Science Reporter
    A MYSTERIOUS object hurtling towards our Solar System may be an alien spacecraft. That's the shock claim made by one space scientist, who has exclusively revealed to The Sun that our incoming visitor could be piloted by hyper-intelligent beings. Last week, scientists in Germany announced they had spotted a distant object heading in our direction. Dubbed "C/2019 Q4", the high-speed body appears to be on a path originating from another star system that will see it fire past Mars in October. Despite numerous attempts to study C/2019, scientists remain clueless as to what it is. Many speculate the distant mass...
  • An interstellar comet looks to be heading our way

    09/11/2019 5:58:09 PM PDT · by BenLurkin · 91 replies
    cnet ^ | September 11, 2019 | Eric Mack
    A comet first spotted by a Ukrainian amateur astronomer looks to be just the second known object to visit our cosmic neighborhood from beyond the solar system. What could be an even bigger deal is that this one was discovered as it's still approaching us. The comet was found by Gennady Borisov of Crimea on Aug. 30, and went by the temporary name GB00234 until very recently. After being watched by several other observatories over the past few weeks, it was given the official name of C/2019 Q4 (Borisov) by the Minor Planet Center on Wednesday. It appeared to follow...
  • Astronomy Picture of the Day -- Big Dipper, Deep Sky

    01/22/2016 10:26:00 PM PST · by SunkenCiv · 12 replies
    NASA ^ | January 23, 2016 | (see photo credit)
    Explanation: The Big Dipper is an easy to recognize, well-known asterism in northern skies, though many see the Plough or Wagon. Famous bright nebulae of the north can also be found along its familiar lines, highlighted in this carefully composed scene with telescopic insets framed in the wider-field skyview. All from Messier's catalog, M101 and M51 are cosmic pinwheel and whirlpool on the left, spiral galaxies far beyond the Milky Way. To the right, M108, a distant edge-on spiral galaxy is seen close to our galaxy's own owl-faced planetary nebula M97. Taken on January 16, the wider-field view seems to...
  • Surprising Recent Discoveries of Three Large Near-Earth Objects

    02/17/2014 7:24:07 PM PST · by SunkenCiv · 18 replies
    NASA/JPL Near-Earth Object Program Office ^ | November 5, 2013 | Don Yeomans and Paul Chodas
    The first of the new large near-Earth asteroid discoveries is named 2013 UQ4, and it is perhaps the most unusual. This approximately 19-kilometer (12-mile) wide object was spotted by the Catalina Sky Survey on Oct. 23 when the asteroid was 435 million kilometers (270 million miles) away from Earth. Not only is this object unusually large, it follows a very unusual highly inclined, retrograde orbit about the Sun, which means it travels around the Sun in the opposite direction of all the planets and the vast majority of asteroids. The only objects usually found in retrograde orbits are comets, which...
  • See a passing comet this Sunday

    12/15/2018 9:47:16 AM PST · by ETL · 26 replies
    Phys.org ^ | Dec 14, 2018 | NASA
    On Sunday, Dec. 16, the comet known as 46P/Wirtanen will make one of the 10 closest comet flybys of Earth in 70 years, and you may even be able to see it without a telescope. Although the approach will be a distant 7.1 million miles (11.4 million kilometers, or 30 lunar distances) from Earth, it's still a fairly rare opportunity. "This will be the closest comet Wirtanen has come to Earth for centuries and the closest it will come to Earth for centuries," said Paul Chodas, manager of the Center for Near-Earth Object Studies at NASA's Jet Propulsion Laboratory in...
  • Brightest comet of 2018 to pass the closest to Earth in Decembe

    12/09/2018 2:54:09 PM PST · by BenLurkin · 24 replies
    nbc ^ | Dec. 9, 2018 / 12:07 PM ‎PST | Angel Torres
    The comet 46P/Wirtanen, which passes Earth every 5.4 years, was one of three comets discovered by Carl Wirtanen in 1948 at the Lick Observatory in California. This orbit will be one of the closest comet orbits to Earth since the 1950s, according to Space.com. The comet 46P will likely not have a large observable tail because of its relatively small size, according to Space.com. It measures 0.68 miles in diameter, one-tenth the size of the popular Halley's Comet. Currently, 46P is a small blueish object in the night sky. The comet will be passing in the Southern sky, near the...
  • Venus wave may be Solar System's biggest

    01/16/2017 1:44:34 PM PST · by BenLurkin · 5 replies
    bbc.com ^ | 16 January 2017 | Paul Rincon
    The...wave is thought to form as the lower atmosphere flows over mountains on Venus' surface. ... Just after entering orbit around Venus in 2015, the Akatsuki orbiter observed a bow-shaped feature in the upper atmosphere over several days. Curiously, the bright structure - which stretched for 10,000km - remained stationary at the altitude of Venus' cloud tops. This is difficult to reconcile with what we know about Venus' thick upper atmosphere, in which clouds streak by at 100 metres per second (m/s). The clouds travel much faster than the slowly rotating planet below, where a Venusian day lasts longer than...
  • Scientists push back against Harvard 'alien spacecraft' theory [Oumuamua]

    11/07/2018 10:22:54 AM PST · by Olog-hai · 34 replies
    A scientific paper led by two researchers at Harvard University made a splash this week by claiming that a cigar-shaped rock zooming through our solar system may have been sent by aliens. The researchers noted in a pre-print of the article that it was an “exotic scenario,” but that “Oumuamua may be a fully operational probe sent intentionally to Earth vicinity by an alien civilization.” Oumuamua, the first interstellar object known to enter our solar system, accelerated faster away from the Sun than expected, hence the notion that some kind of artificial sail that runs on sunlight — known as...
  • Rare blue asteroid responsible for Geminid meteor shower reveals itself during fly-by

    10/24/2018 10:41:54 AM PDT · by BenLurkin · 8 replies
    phys.org/ ^ | 10/24/2018
    Blue asteroids are rare, and blue comets are almost unheard of. An international team led by Teddy Kareta, a graduate student at the University of Arizona's Lunar and Planetary Laboratory, investigated (3200) Phaethon, a bizarre asteroid that sometimes behaves like a comet, and found it even more enigmatic than previously thought. Phaethon sets itself apart for two reasons: it appears to be one of the "bluest" of similarly colored asteroids or comets in the solar system; and its orbit takes it so close to the Sun that its surface heats up to about 800 degrees Celsius (1,500 degrees Fahrenheit), hot...
  • NASA solves mystery of cigar-shaped UFO, believed to carry alien life

    09/29/2018 12:56:41 PM PDT · by ETL · 80 replies
    FoxNews.com/Science ^ | Sept 27, 2018 | Rhian Deutrom | news.com.au
    Scientists have uncovered the truth about a mysterious space rock called Oumuamua which has been hurtling through Earth’s solar system and was spotted last year.A group of acclaimed astronomers, including members from NASA, the European Space Agency and the German Max Planck Institute for Astronomy, released a report this week on the origins of the cigar-shaped asteroid which was first observed in October 2017. The name Oumuamua is Hawaiian for “messenger from afar arriving first” and was named by the site who first spotted it. According to the report, “a fast moving object on an unbound orbit was discovered close...
  • Eerie 'death comet' with a SKULL face will zip past Earth just after Halloween ...

    09/28/2018 10:55:50 AM PDT · by Red Badger · 22 replies
    www.dailymail.co.uk ^ | Published: 12:43 EDT, 27 September 2018 | Updated: 20:10 EDT, 27 September 2018 | Staff
    A 'death comet' will pass earth November 11 about 24million miles away It last showed itself on Halloween 2015 about 302,000 miles away from earth The comet has a human skull face and has been dubbed the Halloween asteroid The comet's next closest visit will occur on November 1, 2088 A 'death comet' will be zipping passed earth just after Halloween this year. The asteroid with a skull-like face will make its second trip near earth in three years after flying a worrisome 302,000 miles from our planet on October 31, 2015. This year, the comet will be a much...
  • How to See the Bright Green Comet 21P in Binoculars on Monday

    09/09/2018 9:10:50 AM PDT · by ETL · 16 replies
    Space.com ^ | September 9, 2018 | Elizabeth Howell, Space.com Contributor
    Want to see a comet whizzing by Earth? A great chance to catch one of these celestial visitors is overnight tonight, when Comet 21P/Giacobini-Zinner will be best visible in binoculars or a telescope. The comet, also known as "21P," will make its closest approach to Earth at around 2:30 a.m. EDT Monday (630 GMT). The bright-green comet should reach a visual magnitude of 6.5 to 7, according to EarthSky.org. This makes 21P almost bright enough to see with the naked eye — but not quite. [Bright Comets of 2018: When, Where and How to See Them] To find Comet 21P...
  • Fireball Meteor Lights Up Missouri Sky

    08/29/2018 5:15:15 PM PDT · by BenLurkin · 10 replies
    patch.com ^ | Aug 28, 2018 3:42 pm ET | J. Ryne Danielson
    More than 200 people across Missouri and seven other states spotted a fireball meteor last night light as it lit up the Midwestern sky, KMOV reports. The American Meteor Society posted observer accounts and several videos of the sighting to its website Tuesday. "It was super bright..." said Lisa B. in Ellisville, Missouri, who filed a report with the group. "We said, what IS that?!? Omg it's a fireball, I have to get my camera. Then tried to open my camera and the trail was all that was left." Some observers said the meteor appeared to break up into several...
  • Velikovsky, Hero or Villain? Plasma Cosmology Astronomy -YouTube video

    01/28/2008 1:51:04 AM PST · by Swordmaker · 29 replies · 576+ views
    YouTube video ^ | 01/28/2008
    Well made YouTube video on the relationship of Immanuel Velikovsky and the Electric Universe. Velikovsky, Hero or Villain? Plasma Cosmology Astronomy Many of the predictions made by Velikovsky have proven true... while the traditional astronomers and cosmologists are repeatedly surprised by the findings.
  • Astronomy Picture of the Day -- Draconid Meteors Over Spain

    10/18/2011 9:50:33 PM PDT · by SunkenCiv · 11 replies
    NASA ^ | October 19, 2011 | (see photo credit)
    Explanation: What are those streaks in the sky? They're meteors from the Draconids meteor shower that peaked earlier this month. The above composite image captured numerous meteor streaks over 90 minutes above the Celtic ruins of Capote in Badajoz province, Spain. The particles that caused these meteors were typically the size of a pebble and were expelled long ago from the nucleus of comet 21P/Giacobini-Zinner. Most of the above meteors can be traced back to a single radiant emanating from the constellation of the Dragon (Draco). Reports from this year meteor shower indicate that the Draconids were unusually good this...
  • Comet 21P/Giacobini-Zinner [Beautiful green comet]

    08/25/2018 10:59:05 AM PDT · by SunkenCiv · 37 replies
    Comet Watch UK ^ | 2018 | editors
    Giacobini-Zinner’s return in 2018 is a promising one as it passes the Earth at a distance of 0.39 au. In June, 2018, 21p will be observable from modest sized telescopes sitting in the constellation of Cygnus reaching a brightness of magnitude 11 by month end. Although for many in the northern hemisphere, the sky will not reach true astronomical darkness all month. Between 17-21 June, the comet will skim past the ‘Mexico’ region of the North America nebula making for a nice widefield shot for photographers (again battling the twilight). The comet will then brighten rapidly through July and August by which time...
  • Look Up! You Might Be Able to See a Green Comet Tonight

    08/07/2018 12:09:27 PM PDT · by BenLurkin · 41 replies
    Popular Mechanics ^ | Aug 7, 2018 | By Temi Adebowale
    Viewing the Incredible Hulk with the naked eye may be a little tricky. Because the comet got so close to the sun and broke up from solar heat, it's rapidly fading from view. Also, thunderstorms and clouds in various parts of the country may impede vision of the comet. However, experts don't rule out another eruption in the coming days, which could make the comet brighter in the night sky. Additionally, Paul Chodas, the manager for the Center for Near-Earth Object Studies at the Jet Propulsion Laboratory, told Live Science the comet may be visible later in August ― around...
  • Researchers observe the first known interstellar comet

    10/26/2017 6:45:17 AM PDT · by Bloody Sam Roberts · 18 replies
    engadget ^ | 10/25/2017 | Jon Fingas
    To date, every comet humanity has seen inside the Solar System has come from the Solar System, whether it's the Kuiper Belt or the billions of comets believed to make up the Oort Cloud. Now, however, it looks like astronomers might have found a comet of interstellar origin. They've used Hawaii's Pan-STARRS 1 telescope to track C/2017 U1, an object with a very eccentric, hyperbolic orbit (that is, moving quickly enough to escape gravitational pull) that wasn't connected to the Sun. The trajectory suggests that it's a comet which escaped from a nearby star, rather than something knocked out a...