Messenger: Journey and Discoveries
Interplanetary trajectory of the MESSENGER orbiter.

Messenger: Journey and Discoveries

MESSENGER extensively used gravity assist maneuvers at Earth, Venus, and Mercury to reduce the speed relative to Mercury, then used its large rocket engine to enter into an elliptical orbit around the planet.

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Messenger Space Probe to Mercury
Reprocessed Mariner 10 data was used to produce this image of Mercury. The smooth band is an area of which no images were taken

Messenger Space Probe to Mercury

The MESSENGER spacecraft was the first spacecraft to orbit Mercury. The name is a backronym for "MErcury Surface, Space ENvironment, GEochemistry, and Rangng"

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Mariner 10: Journey and Discoveries
This picture of Venus was captured by the Mariner 10 spacecraft during its approach to the planet in early 1974. Taken with the spacecraft's imaging system using an ultraviolet filter, the picture has been color enhanced to simulate Venus's natural color as the human eye would see it.

Mariner 10: Journey and Discoveries

When Mariner 10 lifted off from Cape Canaveral on Nov. 3, 1973, very little was known about our neighbors in the solar system. Mariner 10 would only have quick flybys past Venus and Mercury, to be sure.

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Parker Solar Probe
The coronal mass ejection of sun

Parker Solar Probe

Today we will explore another important spacecraft: The Parker Solar Probe. Before going into the details of Parker Solar Probe, let us first understand the need for studying the Sun

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Helios-B: The Second probe to Sun
Trajectory of the Helios space probes

Helios-B: The Second probe to Sun

Helios B was the second spacecraft launched to investigate solar processes as part of a cooperative project between the Federal Republic of Germany and the United States in which the former provided the spacecraft and the latter the launch vehicle.

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