Observatories Team Up to Reveal Rare Double Asteroid
July 12, 2018
New observations by three of the world‘s largest radio telescopes have revealed that an asteroid discovered last year is actually two objects, each about 3,000 feet (900 meters) in size, orbiting each other.
Near-Earth asteroid 2017 YE5 was discovered with observations provided by the Morocco Oukaimeden Sky Survey on Dec. 21, 2017, but no details about the asteroid's physical properties were known until the end of June. This is only the fourth "equal mass" binary near-Earth asteroid ever detected, consisting of two objects nearly identical in size, orbiting each other. The new observations provide the most detailed images ever obtained of this type of binary asteroid.
Arecibo observed the near-Earth asteroid (505657) 2014 SR339
February 9, 2018
Arecibo observed the near-Earth asteroid (505657) 2014 SR339 using its NASA-funded planetary radar system on February 9, 2018. Radar images reveal 2014 SR339 to have a lumpy, elongated shape at least 1.5 km long and a rotation consistent with the 8.7 hour period determined from optical lightcurves (B.D. Warner, MoreData!). Read More
Arecibo Planetary Radar Returns to Action with Images of Asteroid Phaethon
December 22, 2017
First Asteroid Detection since Hurricane Maria
December 12, 2017
Radar Observations and Shape Model of Asteroid 16 Psyche
Jul 21, 2017
Arecibo refines our knowledge of a potentially hazardous asteroid
Apr 17, 2017
Arecibo Observatory captures revealing images of Comet 45P/Honda-Mrkos-Pajdusakova
Feb 12, 2017
Discovery Announcement of Binary System (163693) Atira
Jan 20-23, 2017
Asteroids by the AO Planetary Radar Group
Flea on Pluto? Arecibo Observatory Helps Provide Unprecedented View of Pulsar
May 25, 2018:
Imagine being able to see a flea on the surface of Pluto. That’s a good way to describe what the Arecibo Observatory in Puerto Rico helped a group of Canadian researchers do. Read More
Pulsar Watchers Close In On Galaxy Merger History
Feb 28, 2018
For the past twelve years, a group of astronomers have been watching the sky carefully, timing pulses of radio waves being emitted by rapidly spinning stars called pulsars, first discovered 50 years ago. These astronomers are interested in understanding pulsars, but their true goal is much more profound; the detection of a new kind of gravitational waves. With a new, more sophisticated analysis, they are much closer than ever before.
Astronomers peer into the lair of a mysterious source of cosmic radio bursts
Jan 10, 2018
Using the Arecibo Observatory in Puerto Rico and the Green Bank Telescope in West Virginia, a team from Universities Space Research Association (USRA) and other institutions today announced today at the American Astronomical Society’s winterAAS meeting that mysterious bursts of radio emission, called Fast Radio Bursts (FRB), may be coming from near a giant black hole.
Why are Quasars so Bright?
JULY 18, 2017
The Mystery of Part Time Pulsars
JULY 18, 2017
Gaia Weighs in on the Pleiades Distance Controversy
Jan 27, 2017
Arecibo Puts Limits on Gravitational Wave Models
Jan 20, 2017