NEAR Shoemaker Becomes First Asteroid Lander
February 12th, 2001
February 12th, 2001

How Long Ago?
24 years, 1 month, 2 days ago
Location
Asteroid 433 Eros, Solar System
Category
Space Exploration
People
- Lori Glaze
- Robert C. McMillan
- Daniel E. Scheeres
Links & References
Tags
NEAR Shoemaker Becomes First Asteroid Lander
The NEAR Shoemaker spacecraft successfully landed on the asteroid 433 Eros in the saddle region, marking the first time a spacecraft has made a physical landing on an asteroid. The achievement capped a mission lasting over a year and a half, during which NEAR conducted detailed studies of Eros, a potentially hazardous asteroid located about 16 million kilometers from Earth. The rich scientific data gathered during this mission provided valuable insights into the composition and structure of asteroids, aiding scientists in understanding the early solar system.
NEAR Shoemaker launched in 1996 to study asteroids.
First spacecraft to land on an asteroid's surface.
Gathered key data about Eros's composition and history.
Paved the way for future asteroid exploration missions.
What Happened?
The NEAR Shoemaker spacecraft, launched by NASA in 1996, was designed to study asteroids, with a particular focus on Eros, a G-type asteroid. After a series of flybys of other celestial bodies and a year-long orbit around Eros, on February 12, 2001, the spacecraft executed a controlled descent and successfully landed on the asteroid's surface. The landing occurred in the 'saddle' region, a relatively flat area that allowed for a safe touchdown. This historic moment was not just a technical triumph; it represented a significant advancement in our capability to explore and study smaller celestial bodies. The data transmitted back to Earth provided invaluable information regarding the asteroid's surface, density, and geological history.During its mission, NEAR Shoemaker provided a wealth of data, including high-resolution images of Eros's surface and measurements of its gravity and composition. These findings helped scientists understand the formation and evolution of asteroids in relation to the solar system's history. The success of NEAR Shoemaker also paved the way for subsequent missions targeting asteroids, enhancing our understanding of these ancient remnants and their potential impact on Earth. The spacecraft's ability to both orbit and land on Eros set a precedent for future exploratory missions, reinforcing the importance of direct sampling and observation in space science.
Why Does it Matter?
The landing of NEAR Shoemaker on 433 Eros is significant as it marked humanity's first successful touchdown on an asteroid, showcasing the advancements in space exploration technology. This achievement ignited interest in the study of asteroids, leading to more missions aimed at understanding their composition and potential threats to Earth. The insights gained from Eros have informed planetary defense strategies and contributed to our knowledge of the solar system's history.
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