Skip Navigation: Avoid going through Home page links and jump straight to content
NASA Logo    + View the NASA Portal  
Near Earth Object Program
NEO Basics Search Programs Discovery Statistics Accessible NEAs News Frequently Asked Questions
Orbit Diagrams Orbit Elements Close Approaches Impact Risk Images Related LInks
This animated gif of asteroid 2016 RB1's close approach to Earth was imaged by astronomer Gianluca Masi on the evening of Sept. 6, 2016, using the Virtual Telescope located in Ceccano, Central Italy. Image credit: VT/Masi Small Asteroid Flew Safely Past Earth Today (2016 RB1)
September 7, 2016

A small asteroid designated 2016 RB1 safely flew past Earth today at 10:20 a.m. PDT (1:20 p.m. EDT / 17:20 UTC) at a distance of about 25,000 miles (40,000 kilometers, or just less than 1/10th the distance of Earth to the moon).

Full Story


Comet 252P/LINEAR will safely fly past Earth on March 21, 2016, at a range of about 3.3 million miles (5.2 million kilometers). The following day, comet P/2016 BA14 will safely fly by our planet at a distance of about 2.2 million miles (3.5 million kilometers). Image credit: NASA/JPL-Caltech Small Asteroid Is Earth's Constant Companion (2016 HO3)
June 15, 2016

A small asteroid has been discovered in an orbit around the sun that keeps it as a constant companion of Earth, and it will remain so for centuries to come.

Full Story


Comet 252P/LINEAR will safely fly past Earth on March 21, 2016, at a range of about 3.3 million miles (5.2 million kilometers). The following day, comet P/2016 BA14 will safely fly by our planet at a distance of about 2.2 million miles (3.5 million kilometers). Image credit: NASA/JPL-Caltech Comet P/2016 BA14 Flying by Earth Observed with Radar and Infrared
March 24, 2016

Astronomers were watching when comet P/2016 BA14 flew past Earth on March 22. At the time of its closest approach, the comet was about 2.2 million miles (3.5 million kilometers) away, making it the third closest comet flyby in recorded history Radar images from the flyby indicate that the comet is about 3,000 feet (1 kilometer) in diameter.

Full Story


Comet 252P/LINEAR will safely fly past Earth on March 21, 2016, at a range of about 3.3 million miles (5.2 million kilometers). The following day, comet P/2016 BA14 will safely fly by our planet at a distance of about 2.2 million miles (3.5 million kilometers). Image credit: NASA/JPL-Caltech A 'Tail' of Two Comets
March 18, 2016

Two comets that will safely fly past Earth later this month may have more in common than their intriguingly similar orbits. They may be twins of a sort.

Full Story

Orbit Simulation of Comet Flybys


Graphic indicates the cloud of possible locations asteroid 2013 TX68 will be in at the time of its closest approach to Earth during its safe flyby of our planet on March 5. Image credit: NASA/JPL-Caltech UPDATE: Small Asteroid to Pass Close to Earth March 8
February 25, 2016

Additional observations of asteroid 2013 TX68 have been obtained, refining its orbital path and moving the date of the asteroid's Earth flyby from March 5 to March 8.

Full Story


Graphic indicates the cloud of possible locations asteroid 2013 TX68 will be in at the time of its closest approach to Earth during its safe flyby of our planet on March 5. Image credit: NASA/JPL-Caltech Small Asteroid to Pass Close to Earth March 5
February 2, 2016

A small asteroid that two years ago flew past Earth at a comfortable distance of about 1.3 million miles (2 million kilometers) will safely fly by our planet again in a few weeks, though this time it may be much closer. During the upcoming March 5 flyby, asteroid 2013 TX68 could fly past Earth as far out as 9 million miles (14 million kilometers) or as close as 11,000 miles (17,000 kilometers)

Full Story


The Panoramic Survey Telescope & Rapid Response System (Pan-STARRS) 1 telescope on Maui's Mount Haleakala, Hawaii NASA Office to Coordinate Asteroid Detection, Hazard Mitigation
January 7, 2016

NASA has formalized its ongoing program for detecting and tracking near-Earth objects (NEOs) as the Planetary Defense Coordination Office (PDCO). The office will be responsible for supervision of all NASA-funded projects to find and characterize asteroids and comets that pass near Earth's orbit around the sun

Full Story


Asteroid 2003 SD220 Radar Images Radar Images of a Christmas-Eve Asteroid 2003 SD220
December 23, 2015

Asteroid 2003 SD220 will safely fly past Earth on Dec. 24 at a distance of 6.8 million miles (11 million kilometers). Scientists at NASA's Jet Propulsion Laboratory in Pasadena, California, have generated the highest-resolution images to date of this asteroid using the Deep Space Network's 230-foot (70-meter) antenna at Goldstone, California.

Full Story


Asteroid 1998 WT24 Radar Images from 2001 & 2015 Asteroid Looks Even Better Second Time Around
December 17, 2015

Asteroid 1998 WT24 safely flew past Earth on Dec. 11 at a distance of about 2.6 million miles (4.2 million kilometers, 11 lunar distances). During its flyby, NASA scientists used the 230-foot (70-meter) DSS-14 antenna at Goldstone, California, to probe it with microwave transmissions. Using this technique, they created the highest-resolution radar images of the asteroid.

Full Story


Asteroid 2015 TB145 Radar Image Radar Images Provide New Details on Halloween Asteroid
November 3, 2015

The highest-resolution radar images of asteroid 2015 TB145's safe flyby of Earth have been processed. NASA scientists used giant, Earth-based radio telescopes to bounce radar signals off the asteroid as it flew past Earth on Oct. 31 at 10 a.m. PDT (1 p.m. EDT) at about 1.3 lunar distances (300,000 miles, or 480,000 kilometers) from Earth. Asteroid 2015 TB145 is spherical in shape and approximately 2,000 feet (600 meters) in diameter.

Full Story


Asteroid 2015 TB145 Radar Image Halloween Skies to Include Dead Comet Flyby
October 30, 2015

The large space rock that will zip past Earth this Halloween is most likely a dead comet that, fittingly, bears an eerie resemblance to a skull. Scientists observing asteroid 2015 TB145 with NASA's Infrared Telescope Facility (IRTF) on Mauna Kea, Hawaii, have determined that the celestial object is more than likely a dead comet that has shed its volatiles after numerous passes around the sun.

Full Story


View of the orbit of asteroid 2015 TB145 NASA Spots the 'Great Pumpkin': Halloween Asteroid a Treat for Radar Astronomers
Oct 21, 2015

NASA scientists are tracking the upcoming Halloween flyby of asteroid 2015 TB145 with several optical observatories and the radar capabilities of the agency's Deep Space Network at Goldstone, California. The asteroid will fly past Earth at a safe distance slightly farther than the moon's orbit on Oct. 31 at 10:05 a.m. PDT (1:05 p.m. EDT).

Full Story


View of Earth from Terra satellite There is No Asteroid Threatening Earth in September 2015
August 19, 2015

Numerous recent blogs and web postings are erroneously claiming that an asteroid will impact Earth, sometime between Sept. 15 and 28, 2015. On one of those dates, as rumors go, there will be an impact -- "evidently" near Puerto Rico -- causing wanton destruction to the Atlantic and Gulf coasts of th e United States and Mexico, as well as Central and South America.

"There is no scientific basis -- not one shred of evidence -- that an asteroid or any other celestia l object will impact Earth on those dates," said Paul Chodas, manager of NASA's Near-Earth Object of fice at the Jet Propulsion Laboratory in Pasadena, California.

Full Story


Radar images of Asteroid 1999 JD6 obtained on July 25, 2015 Earth Flyby of 'Space Peanut' Captured in New Video (1999 JD6)
July 31, 2015

NASA scientists have used two giant, Earth-based radio telescopes to bounce radar signals off a passing asteroid and produce images of the peanut-shaped body as it approached close to Earth this past weekend. The images show the rotation of the asteroid, named 1999 JD6, which made its closest approach on July 24 at 9:55 p.m. PDT (12:55 a.m. EDT on July 25) at a distance of about 4.5 million miles (7.2 million kilometers, or about 19 times the distance from Earth to the moon).

Full Story


Graphic showing the passage of asteroid Icarus relative to Earth Asteroid Icarus to Make Distant Pass on June 16, 2015
June 15, 2015

Asteroid Icarus will safely pass by Earth at more than 21 times the distance of Earth to the moon on June 16. To put it another way, Icarus, one of the first near-Earth asteroids ever discovered (1949), will approach no closer than five million miles away (eight million kilometers).

Full Story


Graphic showing the passage of asteroid 1999 FN53 relative to Earth Asteroid 1999 FN53 Distant 'Flyby' on May 14
May 13, 2015

An asteroid, designated 1999 FN53, will safely pass more than 26 times the distance of Earth to the moon on May 14. To put it another way, at its closest point, the asteroid will get no closer than 6.3 million miles away (10 million kilometers). It will not get closer than that for well over 100 years. And even then, (119 years from now) it will be so far away it will not affect our planet in any way, shape or form. 1999 FN53 is approximately 3,000 feet (1 kilometer) across.

Full Story


NASA selected option for a spacecraft to capture a boulder from the surface of a near-Earth asteroid NASA Announces Next Steps on Journey to Mars: Progress on Asteroid Initiative
March 25, 2015

NASA announced more details on its plan for its Asteroid Redirect Mission (ARM), which in the mid-2020s will test a number of new capabilities needed for future human expeditions to deep space, including to Mars. NASA also announced it has increased the detection of near-Earth asteroids by 65 percent since launching its asteroid initiative three years ago. For ARM, a robotic spacecraft will capture a boulder from the surface of a near-Earth asteroid and move it into a stable orbit around the moon for exploration by astronauts, all in support of advancing the nation's journey to Mars.

Full Story


The bar graph showing # of NHATS NEAs discovered each year Number of Known Accessible Near-Earth Asteroids Doubles Since 2010
February 6, 2015

On January 18, 2015 - a little over four years since the NHATS assessments began - the 1332nd NHATS-compliant asteroid was identified, doubling the number of known accessible NEAs.

Full Story


This graphic depicts the passage of asteroid 2004 BL86 Asteroid 2004 BL86 That Flew By Earth Today Has A Moon
January 26, 2015
Updated January 30, 2015

Scientists working with NASA's 230-foot-wide (70-meter) Deep Space Network antenna at Goldstone, California, have released the first radar images of asteroid 2004 BL86. The images show the asteroid, which made its closest approach today (Jan. 26, 2015) at 8:19 a.m. PST (11:19 a.m. EST) at a distance of about 745,000 miles (1.2 million kilometers, or 3.1 times the distance from Earth to the moon), has its own small moon.

Full Story

Updated Animation (January 30, 2015)


Graphic showing 2014 UR116 & Earth Updated Charts for Asteroid 2004 BL86 Earth Flyby on Jan 26, 2015
January 22, 2015

New orbital chart and star charts are now available.

Full Story


This graphic depicts the passage of asteroid 2004 BL86 Asteroid 2004 BL86 to Fly By Earth Safely on January 26
January 13, 2015

An asteroid, designated 2004 BL86, will safely pass about three times the distance of Earth to the moon on January 26. From its reflected brightness, astronomers estimate that the asteroid is about a third of a mile (0.5 kilometers) in size. The flyby of 2004 BL86 will be the closest by any known space rock this large until asteroid 1999 AN10 flies past Earth in 2027.

Full Story


Graphic showing 2014 UR116 & Earth Asteroid 2014 UR116, A 400-meter Sized Near-Earth Asteroid, Represents No Threat to the Earth
December 8, 2014

Some recent press reports have suggested that an asteroid designated 2014 UR116 represents an impact threat to the Earth. The asteroid does not represent a threat because it's orbital path does not pass sufficiently close to the Earth's orbit.

Full Story


Map showing the bolide events from 1994 to 2013 Newly Released Map Data Shows Frequency of Small Asteroid Impacts, Provides Clues on Larger Asteroid Population
November 14, 2014

Small asteroids near Earth, with sizes of only about a meter, hit the atmosphere and disintegrate with surprising frequency - around every other week, new data show.

Full Story


This graphic depicts the passage of asteroid 2014 RC past Earth on September 7, 2014. At time of closest approach, the space rock will be about one-tenth the distance from Earth to the moon. Times indicated on the graphic are Universal Time.  Image credit: NASA/JPL-Caltech Reports of Meteorite Strike in Nicaragua and a Size Update for Asteroid 2014 RC
September 8, 2014
Updated: September 11, 2014

Small meteorite impact reported in Nicaragua is unrelated to Asteroid 2014 RC. 2014 RC has a rotation rate of 15.8 seconds - the fastest rotating asteroid ever observed.

Full Story


This graphic depicts the passage of asteroid 2014 RC past Earth on September 7, 2014. At time of closest approach, the space rock will be about one-tenth the distance from Earth to the moon. Times indicated on the graphic are Universal Time.  Image credit: NASA/JPL-Caltech Small Asteroid to Pass Close by Earth on Sunday (2014 RC)
September 3, 2014

A small asteroid, designated 2014 RC, will safely pass very close to the Earth on Sunday, 7 September 2014. From its brightness, astronomers estimate that the asteroid is about 20 meters (60 feet) in size

Full Story


Observations from NASA's Spitzer Space Telescope reveal new information about the structure of 2011 MD, a small asteroid being considered by NASA for its proposed Asteroid Redirect Mission, or ARM. Image credit: NASA/JPL-Caltech NASA Announces Latest Progress in Hunt for Asteroids
June 19, 2014

Agency officials announced on Thursday, June 19, recent progress to identify candidate asteroids for its Asteroid Redirect Mission (ARM), increase public participation in the search for asteroids, and advance the mission's design.

Full Story


NASA scientists used Earth-based radar to produce these sharp views - an image montage and a movie sequence -- of the asteroid designated '2014 HQ124' on June 8, 2014. Image Credit: NASA/JPL-Caltech/Arecibo Observatory/USRA/NSF
Giant Telescopes Pair Up to Image Near-Earth Asteroid
June 12, 2014

NASA scientists using Earth-based radar have produced sharp views of a recently discovered asteroid 2014 HQ124 as it slid silently past our planet. The new views are some of the most detailed radar images of a near-Earth asteroid ever obtained.

Full Story


This diagram shows the orbit of asteroid 2014 HQ124, and its location relative to Earth on June 8. Image Credit: NASA/JPL-Caltech
Asteroid Discovered by NASA to Pass Earth Safely
June 6, 2014

A large newfound asteroid - 2014 HQ124 - will safely pass Earth on June 8 from a distance of about 777,000 miles (1.25 million kilometers), more than three times farther away than our moon.

Full Story


Menu
  NASA Home Page Site Manager: Paul Chodas
Webmaster: Ron Baalke
Last Updated:
Feedback Credits Privacy Mailing LIst NASA