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Latest Exoplanetology Stories

Exoplanet Discovered That Makes Full Orbit In Under Nine Hours
2013-08-19 09:55:32

Lee Rannals for redOrbit.com - Your Universe Online Scientists from MIT have discovered an exoplanet 700 light-years away that fully orbits its host star every 8.5 hours. The scientists wrote in The Astrophysical Journal the earth-sized planet, Kepler 78b, has one of the shortest orbital periods ever detected. They have estimated its surface temperatures may reach more than 5,000 degrees Fahrenheit due to its extremely close orbital position. Kepler 78b is so close to its star the...

Unexpected And Exotic Characteristics Of Hot Jupiters
2013-08-19 04:42:11

[ Watch the Video: The Strange Attraction of Hot Jupiters ] redOrbit Staff & Wire Reports - Your Universe Online The number of exoplanets discovered by astronomers since the beginning of the Space Age some five decades ago suggests there are possibly over 100 billion such worlds outside our solar system, according to one Caltech astronomer involved with NASA’s Kepler mission. According to John Johnson, an assistant professor of astronomy at the Pasadena-based university, over...

Kepler Mission Cannot Be Restored
2013-08-16 04:33:17

redOrbit Staff & Wire Reports - Your Universe Online After spending several months attempting to restore the Kepler Space Telescope to full working order, NASA announced on Thursday it was throwing in the towel – though the observatory could continue to function in a somewhat limited capacity. According to the US space agency, two of Kepler’s four gyroscope-like reaction wheels have failed – one in July 2012 and the other in May. Those wheels are used to precisely direct the...

2013-08-15 09:47:23

NASA will host a news teleconference at 2 p.m. EDT Thursday, Aug. 15, to discuss the status of the agency's Kepler Space Telescope. Kepler is the first NASA mission capable of finding Earth-size planets in or near the habitable zone, the region around a star in which the surface temperature of an orbiting planet might be suitable for liquid water. Launched in 2009, Kepler has discovered planets and planet candidates with a wide range of sizes and orbital distances and helped scientists...

Series Of Striking On-sky Images Taken By FLAMINGOS-2 Released Today
2013-08-09 07:57:15

Gemini Observatory Gemini Observatory’s latest tool for astronomers, a second-generation infrared instrument called FLAMINGOS-2, has “traveled a long road” to begin science observations for the Gemini scientific community. Recent images taken by FLAMINGOS-2 during its last commissioning phase dramatically illustrate that the instrument was worth the wait for astronomers around the world who are anxious to begin using it. “It’s already one of our most requested instruments at...

Super-Jupiter Planet Observed By Astronomers Using the Subaru Telescope
2013-08-06 05:23:10

John P. Millis, Ph.D. for redOrbit.com - Your Universe Online There are several techniques employed by astronomers to discover planets orbiting distant stars. The most popular techniques seek transits - where a planet will pass directly in front of a star, blocking part of its light. Based on the length of the transit, the amount of light that is blocked, and other factors, astronomers can infer a lot of information about the planet. Additionally, researchers will find planets by...

New Explorer Mission Chooses The 'Goldilocks Orbit'
2013-08-01 08:05:06

NASA Principal Investigator George Ricker likes to call it the "Goldilocks orbit" -- it's not too close to Earth and her Moon, and it's not too far. In fact, it's just right. And as a result of this never-before-used orbit -- advanced and fine-tuned by NASA engineers and other members of the Transiting Exoplanet Survey Satellite (TESS) team -- the Explorer mission led by Ricker will be perfectly positioned to map the locations of more than 500 transiting exoplanets, extrasolar planets...

Pulsating Star Observations Shed New Light On Planetary Systems
2013-07-30 09:10:51

April Flowers for redOrbit.com - Your Universe Online An international team of scientists, including physicists at New York University, Princeton University and the Max Planck Institute for Solar System Research, has devised a method for measuring the internal properties of a star that offers more accurate assessments of the star's orbiting planets. The team examined a star approximately 92 light-years away and almost 20 percent more massive than our Sun, called HD 52265. Scientists...


Latest Exoplanetology Reference Libraries

Planetary Astronomy
2014-01-12 00:00:00

Image Caption: Artistic concept of a planetary system. Credit: Wikipedia/NASA/JPL-Caltech The term Astronomy encompasses a broad range of topics, including the study of stars, galaxies, and planets. In order to focus on the different areas of study, many subfields of astronomy emerge. One such area is the study of planets known, appropriately, as Planetary Astronomy. Observational Planetary Astronomy Even within the field of Planetary Astronomy, there are several divisions to...

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2004-10-19 04:45:43

Terrestrial Planet Finder -- The Terrestrial Planet Finder is a proposed NASA telescope system capable of detecting extrasolar terrestrial planets. In May 2002, NASA chose two TPF mission architecture concepts for further study and technology development. Each would use a different means to achieve the same goal - to block the light from a parent star in order to see its much smaller, dimmer planets. That technology challenge has been likened to finding a firefly near the beam of...

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2004-10-19 04:45:41

Extrasolar Planet -- An extrasolar planet is a planet orbiting around a star other than the Sun. Extrasolar planets were first discovered in the 1990s as a result of improved telescope technology, CCD and computer-based image processing which allowed far more accurate measurements of stellar motions. The first extrasolar planets were reported by the astronomer Aleksander Wolszczan in 1993, orbiting the pulsar PSR 1257+12. Subsequent investigation has determined that they are only planets...

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Word of the Day
siliqua
  • A Roman unit of weight, 1⁄1728 of a pound.
  • A weight of four grains used in weighing gold and precious stones; a carat.
  • In anatomy, a formation suggesting a husk or pod.
  • The lowest unit in the Roman coinage, the twenty-fourth part of a solidus.
  • A coin of base silver of the Gothic and Lombard kings of Italy.
'Siliqua' comes from a Latin word meaning 'a pod.'
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