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Latest Eris Stories

Atmosphere Lacking On Dwarf Planet Makemake
2012-11-21 15:33:44

[ Watch the Video: The Occultation of Dwarf Planet Makemake ] Lee Rannals for redOrbit.com - Your Universe Online New observations using three telescopes at the European Space Observatory's (ESO) Chile location have shown that the dwarf planet Makemake does not have much of an atmosphere after all. Astronomers originally predicted that the planet had an atmosphere like Pluto, but the new observations published in the journal Nature show that it actually doesn't. The planet is...

Image 1 - Astronomers Size-Up Dwarf Planet Eris
2011-10-27 06:46:19

[ Watch the Video ] The European Southern Observatory (ESO) announced on Wednesday that astronomers have accurately measured the diameter of the dwarf planet Eris for the first time. The astronomers believe that the dwarf planet is an almost perfect twin of Pluto in terms of size.  The planet, according to ESO, appears to have a reflective surface, which suggests it is uniformly covered in a thin layer of ice. Astronomers made observations as Eris passed in front of a faint...

Spinning Object Discovered In The Kuiper Belt
2011-10-03 09:07:55

[ Watch the Video ] The bizarre, hourglass-shaped Kuiper belt object 2001QG298 spins round like a propeller as it orbits the Sun, according to an astronomer from Queens University Belfast.   The discovery that the spinning object is tilted at nearly 90 degrees to the ecliptic plane is surprising, and suggests that this type of object could be very common in the Kuiper belt. The finding will be presented by Dr Pedro Lacerda at the Joint Meeting of the European Planetary Science...

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2011-08-24 10:15:34

  Scientists at the California Institute of Technology (Caltech) have discovered that a dwarf planet at the edge of the solar system, dubbed 2007 OR10, is an icy world with about half its surface covered in water ice that once flowed from ancient, slush-producing volcanoes. The red-tinged planet, nicknamed Snow White, may also be covered in a thin layer of methane, the last remnant of an atmosphere slowly being dissipated into space, astronomers said. "You get to see this nice...

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2011-05-12 10:39:40

The fifth dwarf planet of the Solar System, Haumea, and at least one of its two satellites, are covered in crystalline water-ice due to the tidal forces between them and the heat of radiogenic elements. This is the finding of an international research study using observations from the VLT telescope at the European Southern Observatory in Chile. The tiny and strange planet Haumea moves beyond the orbit of Neptune. It has the shape of a flattened rugby ball and is around 2,000 km long. It spins...

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2011-01-13 10:25:00

In the outer reaches of our solar system lies a mysterious region far more remote and difficult to explore than the Australian outback. It remains the only part of our solar system not visited by spacecraft. Called the Kuiper Belt, this area beyond Neptune is home to the dwarf planets Pluto, Eris, Makemake, and Haumea. It also harbors thousands of smaller objects that form a second, icy asteroid belt (or more appropriately, comet belt). In this realm of perpetual twilight, the distant sun...

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2010-06-29 09:59:28

Researchers confirm imaged planet orbits around sun-like star in the Astrophysical Journal A planet about eight times the mass of Jupiter has been confirmed to orbit a Sun-like star that's some 300 times farther from its own star than Earth is from its sun. The newly confirmed planet is the least massive planet known to orbit at such a great distance from its host star. The discovery, first reported in September 2008, was made using high-resolution adaptive optics technology at the Gemini...

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2009-09-16 05:30:00

A dark red area discovered on dwarf planet Haumea appears to be richer in minerals and organic compounds than the surrounding icy surface. The discovery will be presented at the European Planetary Science Congress in Potsdam by Dr Pedro Lacerda on Wednesday September 16. The spot was discovered by measuring changes in its brightness as it rotates.  The origin of the spot is unknown, however its "light curve", which describes variations in its brightness over time, is not exactly the same...

2009-03-02 08:00:00

RMI's Energy and Resources Team (ERT) implements advanced resource planning process that helps guide energy investment options that are sustainable and cost-effective. SNOWMASS, Colo., March 2 /PRNewswire-USNewswire/ -- Rocky Mountain Institute (RMI) today published its Energy and Resource Investment Strategy (ERIS), a breakthrough approach to energy planning. Additionally, the newly launched ERIS website contains a case study exploring how ERIS was successfully applied to RMI's work with...

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2008-10-03 10:00:00

When a treasure hunt comes up empty-handed, the hunters are understandably disappointed. But when astronomers don't find what they are looking for, the defeat can provide as much information as a successful search. The search in question, the Taiwanese-American Occultation Survey (TAOS), spent two years periodically photographing portions of the sky to look for small chunks of rock and ice orbiting beyond Neptune, in a region of the solar system called the Kuiper Belt. The survey targeted...


Latest Eris Reference Libraries

4_fa986c4947be6caa1fdc9a322408b0882
2004-10-19 04:45:41

Quaoar -- Quaoar ("kwah-oh-ahr", /kwA o Ar/) is a Trans-Neptunian object circling the Sun in the Kuiper belt, discovered in 2002 by astronomers Chad Trujillo and Mike Brown at the California Institute of Technology in Pasadena, California. Quaoar is estimated to have a diameter of about 1,280 kilometres, which would make it the largest Solar System object discovered since Pluto and, indeed, the largest known minor planet. Larger than all the asteroids put together, it is about one...

4_f6c7da539e4ce5858ae8aafa252e5d7e2
2004-10-19 04:45:41

Planet Charon -- Charon is the only known satellite of Pluto. Charon was discovered by astronomer James Christy in 1978 using photographic plates which showed a bulge moving around Pluto. Christy named it after the Greek mythological figure Charon but pronounced it differently. The "ch" at the beginning of the moon's name is soft so it sounds like "Sharon," after the astronomer's wife Charlene, nicknamed Char, which both have soft ch sounds. The mythological figure's name is...

4_d525afa47eb1598771cf4d0a9855c4d32
2004-10-19 04:45:41

Planet Pluto -- Pluto is the ninth and smallest planet of our solar system. It was discovered by the astronomer Clyde Tombaugh at the Lowell Observatory in Arizona on February 18, 1930 (although the body was first photographed on March 19, 1915). Tombaugh was searching for a "Planet X" to explain the orbit of Neptune; further analysis, with seven decades more data about Neptune's position, has resolved the perceived anomaly without need for an additional gravitational pull on Neptune....

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