Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Acceleration due to Gravity on Other Planets01:24

Acceleration due to Gravity on Other Planets

3.4K
The gravitational acceleration of an object near the Earth's surface is called the acceleration due to gravity. It can be measured by conducting simple experiments on Earth. However, such an experiment is impossible to conduct on the surface of other planets.
Astronomical observations are thus used to measure the acceleration due to gravity on other planets. This can be determined by observing the effect of a planet's gravity on objects close to it. The crucial factor that helps in this...
3.4K
Impact: Problem Solving01:26

Impact: Problem Solving

615
In an experiment conducted during a Mars mission, a rover propels a projectile with an initial velocity, and the projectile rebounds after colliding with the Martian surface. To ascertain the maximum height attained by the projectile after this collision, the known restitution coefficient and acceleration due to gravity are employed.
By designating the launch point as the origin and utilizing kinematic equations, the vertical component of the projectile's velocity at the point of impact is...
615
Kepler's Second Law of Planetary Motion01:29

Kepler's Second Law of Planetary Motion

4.7K
In the early 17th century, German astronomer and mathematician Johannes Kepler postulated three laws for the motion of planets in the solar system. His first law states that all planets orbit the Sun in an elliptical orbit, with the Sun at one of the ellipse's foci. Therefore, the distance of a planet from the Sun varies throughout its revolution around the Sun.
While in an elliptical orbit, the total energy of the planet is conserved. Therefore, the planet slows down when it is at apogee and...
4.7K
Kepler's First Law of Planetary Motion01:10

Kepler's First Law of Planetary Motion

4.9K
In the early 17th century, German astronomer and mathematician Johannes Kepler postulated three laws for the motion of planets in the solar system. He formulated his first two laws based on the observations of his forebears, Nikolaus Copernicus and Tycho Brahe.
Polish astronomer Nikolaus Copernicus put forth a theory that stated a heliocentric model for the solar system. According to this heliocentric theory, all the planets, including Earth, orbit the Sun in circular orbits.
On the other hand,...
4.9K
Kepler's Third Law of Planetary Motion01:18

Kepler's Third Law of Planetary Motion

3.6K
In the early 17th century, German astronomer and mathematician Johannes Kepler postulated three laws for the motion of planets in the solar system. In 1909, he formulated his first two laws based on the observations of his forebears, Nikolaus Copernicus and Tycho Brahe. However, in 1918, he published his third law of planetary motion, which gives a precise mathematical relationship between a planet's average distance from the Sun and the amount of time it takes to revolve around the Sun. It...
3.6K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Planetary Protection Knowledge Gap Closure Enabling Crewed Missions to Mars.

Astrobiology·2024
Same author

Multi-faceted metagenomic analysis of spacecraft associated surfaces reveal planetary protection relevant microbial composition.

PloS one·2023
Same author

COSPAR Sample Safety Assessment Framework (SSAF).

Astrobiology·2022
Same author

A comprehensive metagenomics framework to characterize organisms relevant for planetary protection.

Microbiome·2021
Same author

Identification and Characterization of Early Mission Phase Microorganisms Residing on the Mars Science Laboratory and Assessment of Their Potential to Survive Mars-like Conditions.

Astrobiology·2017
Same author

Application of the ATP assay to rapidly assess cleanliness of spacecraft surfaces: a path to set a standard for future missions.

AMB Express·2016

Related Experiment Video

Updated: May 4, 2026

Emission Spectroscopic Boundary Layer Investigation during Ablative Material Testing in Plasmatron
09:41

Emission Spectroscopic Boundary Layer Investigation during Ablative Material Testing in Plasmatron

Published on: June 9, 2016

15.0K

Implementing planetary protection measures on the Mars Science Laboratory.

James N Benardini1, Myron T La Duc, Robert A Beaudet

  • 1Biotechnology and Planetary Protection Group, Jet Propulsion Laboratory, California Institute of Technology , Pasadena, California.

Astrobiology
|January 18, 2014
PubMed
Summary
This summary is machine-generated.

The Mars Science Laboratory mission successfully implemented planetary protection measures, ensuring microbial contamination levels on the Curiosity rover and its hardware were well within NASA

More Related Videos

Scattering And Absorption of Light in Planetary Regoliths
11:34

Scattering And Absorption of Light in Planetary Regoliths

Published on: July 1, 2019

11.5K
Simulation of the Planetary Interior Differentiation Processes in the Laboratory
06:04

Simulation of the Planetary Interior Differentiation Processes in the Laboratory

Published on: November 15, 2013

11.3K

Related Experiment Videos

Last Updated: May 4, 2026

Emission Spectroscopic Boundary Layer Investigation during Ablative Material Testing in Plasmatron
09:41

Emission Spectroscopic Boundary Layer Investigation during Ablative Material Testing in Plasmatron

Published on: June 9, 2016

15.0K
Scattering And Absorption of Light in Planetary Regoliths
11:34

Scattering And Absorption of Light in Planetary Regoliths

Published on: July 1, 2019

11.5K
Simulation of the Planetary Interior Differentiation Processes in the Laboratory
06:04

Simulation of the Planetary Interior Differentiation Processes in the Laboratory

Published on: November 15, 2013

11.3K

Area of Science:

  • Planetary Science
  • Astrobiology
  • Microbiology

Background:

  • The Mars Science Laboratory (MSL) mission aimed to assess Mars' habitability.
  • Planetary protection is crucial to prevent microbial contamination and comply with international treaties.

Purpose of the Study:

  • To implement and verify planetary protection measures on the MSL flight system.
  • To ensure bioburden levels on MSL hardware complied with NASA regulations.

Main Methods:

  • Antimicrobial countermeasures were applied throughout MSL hardware assembly.
  • Bioburden levels were monitored to verify compliance with planetary protection standards.

Main Results:

  • The total bacterial endospore burden of MSL at launch was 2.78×10⁵ spores, below the 5.0×10⁵ spores limit.
  • The spore burden on landed MSL hardware surfaces was 5.64×10⁴, below the 3.0×10⁵ spores limit.
  • MSL spacecraft had an average of 22 spores/m² at launch.

Conclusions:

  • Planetary protection measures were successfully implemented and verified for the MSL mission.
  • The mission achieved compliance with NASA regulations for microbial contamination.
  • The findings support the integrity of scientific exploration on Mars.