News About Asteroids And Comets
September 01, 2017
Close encounters of the stellar kind
Paris (ESA) Sep 01, 2017
The movements of more than 300 000 stars surveyed by ESA's Gaia satellite reveal that rare close encounters with our Sun might disturb the cloud of comets at the far reaches of our Solar System, sending some towards Earth in the distant future. As the Solar System moves through the Galaxy, and as other stars move on their own paths, close encounters are inevitable - though 'close' still means many trillions of kilometres. A star, depending on its mass and speed, would need to get within abou ... read more

Space News from
Europe urged to reconsider pullout from 'Armageddon' asteroid mission

Ancient meteorite impact triggered highest surface temperature in Earth's history

Space radiation is risky business for the human body

New research suggests Mercury's poles are icier than scientists thought

First steps: returning humanity to the Moon

Exploring 'Perseverance Valley' During Winter

More evidence of water on Mars

Largest asteroid in a century to whiz by Sept 1
The largest asteroid in more than a century will whiz safely past Earth on September 1 at a safe but unusually close distance of about 4.4 million miles (7 million kilometers), NASA said. ... more
Backyard Observers Ready to View Asteroid's Close Flyby
When astronomer Bobby Bus discovered an asteroid passing through the inner solar system on March 2, 1981, it was bright enough to record in his telescope's photos despite being more than 145 million ... more
House-Sized Near-Earth Objects Rarer Than We Thought
n 2013 a small meteoroid, the size of a house, hurtled through Earth's atmosphere and exploded over the Russian city of Chelyabinsk. The explosion shattered windows, and more than a thousand people ... more
NASA's asteroid sample return mission successfully adjusts course
NASA's OSIRIS-REx spacecraft fired its thrusters to position itself on the correct course for its upcoming Earth flyby. The spacecraft, which is on a two-year outbound journey to asteroid Bennu, suc ... more
Phoenicid meteor shower from dead comet arises again after 58 years
The Phoenicid meteor shower (named after the constellation Phoenix) was discovered by the first Japanese Antarctic Research Expedition on December 5, 1956, during their voyage in the Indian Ocean. H ... more
Dino-killing asteroid could have thrust Earth into 2 years of darkness
Tremendous amounts of soot, lofted into the air from global wildfires following a massive asteroid strike 66 million years ago, would have plunged Earth into darkness for nearly two years, new resea ... more
Large asteroid to safely pass Earth on September 1
Asteroid Florence, a large near-Earth asteroid, will pass safely by Earth on Sept. 1, 2017, at a distance of about 4.4 million miles, (7.0 million kilometers, or about 18 Earth-Moon distances). ... more
Asteroid Apophis has One in 100,000 chance of hitting Earth
The huge nearly 400-meter wide asteroid Apophis is still on a list of hazardous near-Earth objects (NEOs), regarded as a potential threat to our planet. However, new calculations made by NASA's Jet ... more

Free Newsletters - Space News - Defense Alert - Environment Report - Energy Monitor
Asteroid 2012 TC4 will fly past Earth in October 2017
A small asteroid flying past Earth on 12 October will provide scientists with a valuable opportunity to learn more about its orbit and composition. The campaign will exercise the international netwo ... more
How to watch this weekend's Perseid meteor shower
Skywatchers in the Northern Hemisphere will be treated to a show of shooting stars on Friday and Saturday night as the Perseid meteor shower peaks over the weekend. ... more
Asteroid to shave past Earth on Oct 12: ESA
A house-sized asteroid will shave past our planet on October 12, far inside the Moon's orbit but without posing any threat, astronomers said Thursday. ... more
SwRI part of international team identifying primordial asteroids
Southwest Research Institute (SwRI) was part of an international team that recently discovered a relatively unpopulated region of the main asteroid belt, where the few asteroids present are likely p ... more
Supernova-Hunting Team Finds Comet with Aid of Amateur Astronomer
Carnegie's Benjamin Shappee is part of a team of scientists, including an Australian amateur astronomer, which discovered a new comet last week. Called the All Sky Automated Survey for Superno ... more
Asteroid Flyby Will Benefit NASA Detection and Tracking Network
NASA scientists are excited about the upcoming close flyby of a small asteroid and plan to use its upcoming October close approach to Earth as an opportunity not only for science, but to test NASA's ... more
Upcoming asteroid flyby will help Planetary Defense Network
For the first time, NASA will use an actual space rock for an observational campaign to test NASA's network of observatories and scientists who work with planetary defense. The asteroid, named 2012 ... more
Exploring an unusual metal asteroid
Lindy Elkins-Tanton '87, SM '87, PhD '02 is reaching for the stars - literally. She is the principal investigator for Psyche, a NASA mission that will explore an unusual metal asteroid known as 16 P ... more

Free Newsletters - Space News - Defense Alert - Environment Report - Energy Monitor
Training Space Professionals Since 1970

Tempur-Pedic Mattress Comparison & Memory Foam Mattress Review
Large, Distant Comets More Common Than Previously Thought
Comets that take more than 200 years to make one revolution around the Sun are notoriously difficult to study. Because they spend most of their time far from our area of the solar system, many "long ... more
Ancient, massive asteroid impact could explain Martian geological mysteries
The origin and nature of Mars is mysterious. It has geologically distinct hemispheres, with smooth lowlands in the north and cratered, high-elevation terrain in the south. The red planet also has tw ... more
Pitted Materials in Craters Could Indicate Buried Ice on Asteroids
Pitted terrains inside fresh complex craters on Ceres are similar to terrains seen Mars and Vesta, and are likely formed through the rapid evaporation of subsurface H2O, a new paper by Planetary Sci ... more
Bizarro comet challenging researchers
Scientists pursue research through observation, experimentation and modeling. They strive for all of these pieces to fit together, but sometimes finding the unexpected is even more exciting. That's ... more
NASA'S First Asteroid Deflection Mission Enters Next Design Phase
The first-ever mission to demonstrate an asteroid deflection technique for planetary defense - the Double Asteroid Redirection Test (DART) - is moving from concept development to preliminary design ... more
Are asteroids humanity's 'greatest challenge'?
Throughout its 4.5-billion-year history, Earth has been repeatedly pummelled by space rocks that have caused anything from an innocuous splash in the ocean to species annihilation. ... more
NASA is building computer models of possible asteroid impact scenarios
NASA scientists are using one of the agency's most powerful supercomputers to build 3D models of potential asteroid impact scenarios. ... more
How a Speck of Light Becomes an Asteroid
On the first day of the year 1801, Italian astronomer Gioacchino Giuseppe Maria Ubaldo Nicolo Piazzi found a previously uncharted "tiny star" near the constellation of Taurus. The following night Pi ... more
The contents herein, unless otherwise known to be public domain, are Copyright 1995-2017 - SpaceDaily. AFP and UPI Wire Stories are copyright Agence France-Presse and United Press International. ESA Portal Reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. Advertising does not imply endorsement, agreement or approval of any opinions, statements or information provided by SpaceDaily on any web page published or hosted by SpaceDaily. Privacy statement

Free Newsletters - Space News - Defense Alert - Environment Report - Energy Monitor
Buy Advertising Media Advertising Kit Editorial & Other Enquiries Privacy statement