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Picture of the Day · NASA

Pathfinder on Mars

Pathfinder on Mars

2026-07-04

On July 4th, 1997, using its own array of fireworks, a parachute, and a cocoon of airbags, the Mars Pathfinder spacecraft bounced like a giant beach ball at least 15 times before it came to rest on the surface of Mars at 10:07 AM Pacific Daylight Time. After its then novel airbag-assisted landing sequence was completed, Pathfinder transmitted this color mosaic to mission operators on Earth. In the scene from another world, the Mars Sojourner robot rover is visible in the foreground, crouched on top of the unfolded Pathfinder. About the size of a large house cat, the six-wheeled, solar-powered Sojourner became the first successful Martian rover. Surrounding Pathfinder are deflated airbags and the rock-strewn terrain of the Ares Vallis floodplain. In the distance Martian hills appear against a dusty brownish sky. The Pathfinder lander was subsequently renamed the Carl Sagan Memorial Station.

via NASA APOD

Wikidata facts

Instance of
asteroid
Followed by
18398 Bregenz
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
6.04
Orbital period
1512.009778557323
Show 16 more facts
discoverer or inventor
Henry E. Holt
site of astronomical discovery
Palomar Observatory
provisional designation
1996 RY4
time of discovery or invention
1992-09-28
orbital eccentricity
0.3102606416367157
albedo
0.133
orbital inclination
18.02372713219225
periapsis
1.778234877405
apoapsis
3.378016845346212
semi-major axis of an orbit
2.578125861375606
mean anomaly
5.517717026495751
longitude of ascending node
228.2330244846207
argument of periapsis
140.8115422800289
absolute magnitude
14.53
time of periapsis
2460977.325438613
Sources (3)

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