# reentry vehicle

> vehicle designed to reenter an atmosphere intact

**Wikidata**: [Q3564002](https://www.wikidata.org/wiki/Q3564002)  
**Source**: https://4ort.xyz/entity/reentry-vehicle-q3564002

## Summary
A **reentry vehicle** is a spacecraft or missile component designed to survive reentering Earth's atmosphere intact. It is a critical technology for returning payloads from space or delivering warheads via ballistic missiles.

## Key Facts
- **Definition**: A vehicle or component designed to reenter an atmosphere without burning up.
- **Parent Class**: Subclass of *spacecraft* and related to *reentry capsules*.
- **Military Use**: Component of long-range ballistic missiles that reenters the atmosphere.
- **NASA Testing**: Used in experiments like the *Inflatable Re-entry Vehicle Experiment (IRVE)* series.
- **Related Projects**: Includes the *Discoverer 5 Capsule* and *Low-Density Supersonic Decelerator (LDSD)*.
- **Aliases**: Also known as *re-entry vehicle*.
- **Wikidata Stats**: 2 sitelinks, categorized under *atmospheric entry*.

## FAQs
### Q: What is the purpose of a reentry vehicle?
A: It allows spacecraft or missile warheads to survive the extreme heat and pressure of atmospheric reentry, ensuring intact delivery or recovery.

### Q: How is a reentry vehicle different from a reentry capsule?
A: A reentry vehicle is a broader category that includes missile components, while a reentry capsule specifically refers to spacecraft modules for crew or cargo return.

### Q: Has NASA tested inflatable reentry vehicles?
A: Yes, through programs like *IRVE* and *LDSD*, which experimented with inflatable heatshields for safer atmospheric entry.

### Q: Are reentry vehicles only used in space exploration?
A: No, they are also critical in ballistic missile systems for delivering warheads through the atmosphere.

### Q: What was the Discoverer 5 Capsule?
A: A spacecraft with a separable reentry vehicle containing a recovery capsule, part of early U.S. satellite programs.

## Why It Matters
Reentry vehicles are essential for both space exploration and defense. They enable the safe return of astronauts, scientific payloads, and satellite data from orbit, as well as the precise delivery of missile warheads. Without them, atmospheric reentry would destroy most objects due to extreme heat and friction. Advances in reentry technology, such as inflatable heatshields, could reduce costs and improve safety for future missions to Mars and beyond. Their dual-use nature also makes them strategically significant in military applications.

## Notable For
- **Survivability**: Designed to withstand extreme heat and pressure during atmospheric reentry.
- **Dual Use**: Employed in both civilian space missions and military ballistic missiles.
- **Innovation**: Testbed for experimental technologies like inflatable decelerators (e.g., IRVE, LDSD).
- **Historical Role**: Used in early satellite programs like *Discoverer 5*.
- **Precision**: Enables controlled reentry for targeted landings or strikes.

## Body
### **Definition and Classification**
A reentry vehicle is a specialized component of a spacecraft or ballistic missile engineered to endure the harsh conditions of atmospheric reentry. It is a subclass of *spacecraft* and closely related to *reentry capsules*, which are modules designed for crew or cargo recovery.

### **Military Applications**
In ballistic missile systems, the reentry vehicle houses the warhead and separates from the missile bus before reentering the atmosphere. Its design ensures the payload reaches its target intact despite extreme thermal and mechanical stresses.

### **NASA’s Experimental Programs**
NASA has tested inflatable reentry systems through projects like:
- **IRVE (Inflatable Re-entry Vehicle Experiment)**: A series of vehicles (IRVE-1, IRVE-2, IRVE-3) exploring inflatable heatshields.
- **LDSD (Low-Density Supersonic Decelerator)**: Aims to develop advanced deceleration tech for Mars landings.
- **Discoverer 5 Capsule**: An early satellite with a separable reentry vehicle for recovery missions.

### **Technical Challenges**
Reentry vehicles must address:
- **Thermal Protection**: Shielding against temperatures exceeding 1,600°C (2,900°F).
- **Structural Integrity**: Maintaining shape under aerodynamic forces.
- **Guidance Systems**: Ensuring precise trajectory control during descent.

### **Related Technologies**
- **Jupiter Atmospheric Probe**: Deployed by the *Galileo spacecraft* to study Jupiter’s atmosphere.
- **Earth Re-entry Vehicle Demonstrator**: Experimental platforms for testing new reentry methods.

## Schema Markup
```json
{
  "@context": "https://schema.org",
  "@type": "Thing",
  "name": "reentry vehicle",
  "description": "vehicle designed to reenter an atmosphere intact",
  "sameAs": [
    "https://www.wikidata.org/wiki/Q730727",
    "https://en.wikipedia.org/wiki/Reentry_vehicle"
  ],
  "additionalType": "spacecraft"
}