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Latest Asteroid Stories

Asteroid Fragments May Give Insight Into Origins Of Planets
2012-10-05 13:38:38

The cooperative space project Hayabasa set out to collect the very first samples from the surface of a near-earth asteroid, Itokawa. Scientists believe that the work will offer insight into the early history of our Solar System and the formation of the planets more than 4.5 billion years ago.

Olivine Found In Beta Pictoris
2012-10-04 05:20:13

ESA's Herschel Space Observatory has discovered pristine material that matches comets in our own Solar System in a dust belt around the young star Beta Pictoris.

Water May Have Been Deposited On Vesta Asteroid Long Ago
2012-09-26 14:42:05

Astronomers suggest that water may have been delivered to Vesta through a build-up of small particles during an epoch when the Solar System was rich in dust.

asteroid Vesta
2012-09-20 15:09:18

According to findings reported in the journal Science, NASA's Dawn spacecraft has revealed signs of hydrated minerals on the giant asteroid Vesta.

2012-09-20 09:35:54

Momentum Grows for First Private Deep Space Mission to Map the Inner Solar System and Track Asteroids Posing Threats to Earth

NASA Releases Last Images Of Dawn Spacecraft Visit With Vesta Asteroid
2012-09-12 14:31:54

As NASA's Dawn mission spacecraft speeds away from the giant asteroid Vesta, mission control has released two parting views using images that were among the last taken by Dawn.

Amateur Astronomers Catch Rare Explosion Sighting On Jupiter
2012-09-12 07:41:43

Sometime early Monday morning while most of the country was in bed dreaming of sweet nothings, at least two amateur astronomers were out blazing the night skies looking for action.

Dawn Departs Giant Asteroid Vesta
2012-09-06 05:38:04

NASA's Dawn spacecraft has escaped the gravitational pull of the giant asteroid Vesta and is on its way to the dwarf planet Ceres.

Asteroid Needs A Name!
2012-09-04 13:39:18

NASA is opening up an opportunity for students to help name an asteroid the space agency will be gathering samples from and returning back to Earth.


Latest Asteroid Reference Libraries

26_26ca3fd3e3e9d60674271116cfd629a1
2009-04-28 17:17:08

Johann Daniel Titius was born on January 2, 1729 in Konitz, Royal Prussia. He was a professor at Wittenberg. He is most famous for the Titius-Bode law, which helped him find the existence of a minor planet at 2.8 AU from the sun in 1766. The planet was later named Ceres. Titius died in Wittenberg on December 11, 1796. To his honor, the Titius asteroid in 1998 and the Titius lunar crater are named after him.

8_1e2e2011b36872dcb4753873588746382
2004-10-19 04:45:44

Lagrangian Point -- In Lagrangian mechanics, a Lagrangian point (or L-point) is one of five positions in space where the gravitational fields of two bodies of substantial but differing mass combine to form a point at which a third body of negligible mass would be stationary relative to the two bodies. Bodies at the L-point will not move relative to the parent bodies if they are not perturbed by other gravitational forces. They are sometimes also referred to as libration points. The...

6_07e7808819d3a0e0b1e9459490122f2b2
2004-10-19 04:45:42

Planet -- A planet is a body of considerable mass that orbits a star and that doesn't produce energy through nuclear fusion. Until recently, only nine were known (all of them in our own Solar system). As of the end of 2002 over 100 are known, with all of the new discoveries being extrasolar planets. Astronomers often call asteroids minor planets, and call the larger planetary bodies (those which are commonly called planets) major planets. Planets within the solar system can be...

6_79b1bf0245952aa2e5b479867b1c322b2
2004-10-19 04:45:41

Asteroid -- An asteroid, also called a minor planet or planetoid, is a member of a group of small, planet-like bodies that are part of our solar system. They are believed to be remnants of the interstellar clouds, nebula, that were not incorporated into planets during the formation of the solar system. The largest asteroid in the inner solar system is Ceres with a diameter of 1003 km. It also was the first to be discovered, by Giuseppe Piazzi on January 1, 1801. Nowadays, over 9000...

Solar System
2012-10-22 06:09:41

The Solar System refers to the area in space that is dominated by our own Sun. It is comprised of the Sun and its associated astronomical objects that are held in its gravitational orbit. The Solar System was formed as a result of the collapse of a giant molecular cloud approximately 4.6 billion years ago. The mass of this system is located almost entirely in the Sun. Apart from the Sun, a high percentage of the remainder of the system’s mass is located in the eight solitary planets that...

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Word of the Day
definiens
  • The word or words serving to define another word or expression, as in a dictionary entry.
The word 'definiens' comes from the Latin word 'definire', 'to define'.
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