# InSight

> robotic lander on Mars

**Wikidata**: [Q1660590](https://www.wikidata.org/wiki/Q1660590)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/InSight)  
**Source**: https://4ort.xyz/entity/insight

## Summary
InSight is a NASA robotic lander designed to study the interior of Mars. It landed on Mars in November 2018 and operated until December 2022, providing critical data on seismic activity, heat flow, and the planet's internal structure. The mission aimed to improve our understanding of terrestrial planet formation.

## Key Facts
- **Official Name**: InSight (Interior Exploration using Seismic Investigations, Geodesy and Heat Transport)  
- **Launch Date**: May 5, 2018, aboard an Atlas V 401 rocket from Vandenberg Space Launch Complex 3 East  
- **Landing Date**: November 26, 2018, at Elysium Planitia, Mars  
- **Mass**: 694 kg (launch weight), 348 kg (landing weight)  
- **Dimensions**: 6 m (length) × 1.56 m (width) × 1 m (height)  
- **Operator**: NASA Jet Propulsion Laboratory  
- **Manufacturer**: Lockheed Martin Space  
- **Power Source**: Photovoltaic system generating 600 watts  
- **Mission Duration**: Operational until December 18, 2022  
- **Part of**: NASA's Discovery Program  

## FAQs
### Q: What was InSight's primary mission?  
A: InSight aimed to study Mars' deep interior using seismic, heat flow, and rotational measurements to understand planetary formation processes.  

### Q: Why did InSight land at Elysium Planitia?  
A: Elysium Planitia was chosen for its flat terrain and optimal sunlight exposure, ensuring safe landing and sufficient solar power generation.  

### Q: How did InSight communicate with Earth?  
A: It relied on NASA's Deep Space Network and was accompanied by two briefcase-sized satellites, MarCO-A and MarCO-B, during launch.  

## Why It Matters  
InSight provided unprecedented insights into Mars' internal structure, including the first detection of marsquakes, revealing similarities and differences between Mars and Earth. Its data helps scientists understand how rocky planets form and evolve. By measuring heat flow and seismic activity, InSight addressed fundamental questions about planetary geology, contributing to future human exploration efforts. The mission also demonstrated advanced landing technology and miniaturized satellite communication, paving the way for more cost-effective deep-space missions.  

## Notable For  
- First mission dedicated to studying Mars' deep interior.  
- Detected over 1,300 marsquakes, including the largest ever recorded (magnitude 5).  
- Deployed the first robotic mole (HP³) to measure subsurface heat flow, though it encountered challenges penetrating Martian soil.  
- Operated longer than its planned two-year mission, providing four years of data.  

## Body  
### Mission Overview  
- **Objective**: Investigate Mars' seismic activity, heat flow, and rotational dynamics.  
- **Program**: Part of NASA's Discovery Program (cost-capped planetary science missions).  
- **Followed**: Gravity Recovery and Interior Laboratory (GRAIL); **Followed by**: Lucy mission.  

### Technical Specifications  
- **Power**: Solar panels producing 600 watts, equipped with multijunction photovoltaic cells.  
- **Instruments**:  
  - Seismic Experiment for Interior Structure (SEIS)  
  - Heat Flow and Physical Properties Package (HP³)  
  - Rotation and Interior Structure Experiment (RISE)  
  - Temperature and Winds for InSight (TWINS)  
  - Laser Retroreflector for InSight (LaRRI)  

### Significant Events  
- **Launch**: May 5, 2018, with secondary payloads MarCO-A/B.  
- **Landing**: November 26, 2018, using parachutes and retro-rockets.  
- **End of Mission**: Declared December 18, 2022, after dust-covered solar panels could no longer recharge batteries.  

### Discoveries  
- Confirmed Mars has a liquid core and a thinner crust than expected.  
- Detected seismic waves from meteorite impacts, helping map subsurface layers.  
- Revealed seasonal variations in seismic activity.

## References

1. Jonathan's Space Report
2. [Source](http://solaerotech.com/emcore-awarded-solar-panel-manufacturing-contract-by-atk-for-nasas-insight-mars-lander-mission/)
3. [Source](https://www.jpl.nasa.gov/news/press_kits/insight/launch/download/mars_insight_launch_presskit.pdf)
4. Freebase Data Dumps. 2013
5. [Source](https://blogs.nasa.gov/insight/2022/12/19/nasa-insight-dec-19-2022/)
6. [Source](https://naif.jpl.nasa.gov/pub/naif/toolkit_docs/C/req/naif_ids.html)
7. [InSight Press Kit](https://www.jpl.nasa.gov/news/press_kits/insight/)