This is a group of photographs taken of Eros by the NEAR spacecraft during its approach.
Click on image for full size
The Johns Hopkins University Applied Physics Laboratory, Laurel, Maryland.

Near Earth Asteroid Rendezvous

The Near Earth Asteroid Rendezvous (NEAR) spacecraft is the first one to ever orbit an asteroid. NEAR was launched in 1996, and finally reached Eros on February 14, 2000. On its way to Eros it flew by asteroid Mathilde for a quick look.

Eros is one of the largest asteroids near Earth. It was discovered in 1898. Eros is large enough to have a small gravitational pull, which allows NEAR to stay in orbit. The mission was one of the first to be a part of the Discovery Program, a low cost exploration program set up by NASA.

NEAR has six instruments that it will use to study Eros. An imager will take photographs, a magnetometer will search for a magnetic field, and spectrometers will analyze the asteroid's makeup. The goals of the mission are simple; learn as much as we can about these miniature planets.

You might also be interested in:

Traveling Nitrogen Classroom Activity Kit

Check out our online store - minerals, fossils, books, activities, jewelry, and household items!...more

NEAR Flyby of Asteroid Mathilde

On June 27, 1997, the NEAR spacecraft passed very close to the asteroid Mathilde. NEAR stands for Near Earth Asteroid Rendevous. Mathilde is a large asteroid. Its diameter was estimated to be 60 km. That...more

The Magnetic Field

The force of magnetism causes material to point along the direction the magnetic force points. As shown in the diagram to the left, the force of magnetism is illustrated by lines, which represent the force....more


A spacecraft named Cassini will study the planet Saturn for several years. Cassini blasted off from Earth in October 1997. After flying past Venus, Earth, and Jupiter, Cassini finally arrived at Saturn...more


The MErcury Surface Space ENvironment, GEochemistry Ranging mission (MESSENGER) was chosen as the next mission to Mercury. The Mariner 10 spacecraft last visited Mercury in 1975. Since then, scientists...more

Windows to the Universe, a project of the National Earth Science Teachers Association, is sponsored in part is sponsored in part through grants from federal agencies (NASA and NOAA), and partnerships with affiliated organizations, including the American Geophysical Union, the Howard Hughes Medical Institute, the Earth System Information Partnership, the American Meteorological Society, the National Center for Science Education, and TERC. The American Geophysical Union and the American Geosciences Institute are Windows to the Universe Founding Partners. NESTA welcomes new Institutional Affiliates in support of our ongoing programs, as well as collaborations on new projects. Contact NESTA for more information. NASA ESIP NCSE HHMI AGU AGI AMS NOAA