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Picture of the Day · NASA

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

(27) Euterpe

Orbit class

Main-belt

Semi-major axis

2.347 AU

Eccentricity

0.172

Inclination

1.583 °

Absolute magnitude

7.030 H

via Minor Planet Center

Key facts

Discovered by

J. R. Hind

Discovery site

George Bishop's Obs.

Discovery date

8 November 1853

Pronunciation

/ j uː ˈ t ɜːr p iː /

Named after

Euterpe (Greek mythology)

Alternative designations

1945 KB

Minor planet category

main-belt · ( inner ) , Euterpe

Adjectives

Euterpean / j uː ˈ t ɜːr p i ə n /

Observation arc

163.48 yr (59,711 days)

Aphelion

2.7524 AU

Perihelion

1.9401 AU

Semi major axis

2.3463 AU

Orbital period sidereal

3.59 yr (1,313 days)

Mean anomaly

170.66 °

Mean motion

0° 16 27.12 / day

Inclination

1.5837°

Longitude of ascending node

94.789°

Argument of perihelion

356.55°

via Wikipedia infobox

Wikidata facts

Instance of

asteroid

Named after

Euterpe

Followed by

28 Bellona

Follows

26 Proserpina

Parent body

Sun

Minor-planet group

asteroid belt

Diameter

96.0

Orbital period

1313.457699579931

Image

27Euterpe (Lightcurve Inversion).png

via Wikidata · CC0