Search

NASA+

Search

Suggested Searches

Climate Change
Artemis
Expedition 64
Mars perseverance
SpaceX Crew-2
International Space Station
View All Topics A-Z

Home
Missions
Humans in Space
Earth
The Solar System
The Universe
Science
Aeronautics
Technology
Learning Resources
About NASA
Español

News & Events
Multimedia
NASA+

Featured

Discovery Alert: ‘Baby’ Planet Photographed in a Ring around a Star for the First Time!

Discovery Alert: ‘Baby’ Planet Photographed in a Ring around a Star for the First Time!

article2 months ago

An astronaut wears a VR headset and holds controllers in his hands during a training exercise.

Astronaut Candidates Get to Work at Johnson Space Center

article2 months ago

NASA Aircraft Coordinate Science Flights to Measure Air Quality

NASA Aircraft Coordinate Science Flights to Measure Air Quality

article2 months ago

Missions

Search All NASA Missions
A to Z List of Missions
Upcoming Launches and Landings
Spaceships and Rockets
Communicating with Missions
Artemis
James Webb Space Telescope
Hubble Space Telescope
International Space Station
OSIRIS-Rex

Humans in Space

Why Go to Space
Astronauts
Commercial Space
Destinations
Spaceships and Rockets
Living in Space

Earth

Explore Earth Science
Climate Change
Earth, Our Planet
Earth Science in Action
Earth Multimedia
Earth Data
Earth Science Researchers

The Solar System

The Sun
Mercury
Venus
Earth
The Moon
Mars
Jupiter
Saturn
Uranus
Neptune
Pluto & Dwarf Planets
Asteroids, Comets & Meteors
The Kuiper Belt
The Oort Cloud
Skywatching

The Universe

Exoplanets
The Search for Life in the Universe
Stars
Galaxies
Black Holes
The Big Bang
Dark Energy
Dark Matter

Science

Earth Science
Planetary Science
Astrophysics & Space Science
The Sun & Heliophysics
Biological & Physical Sciences
Lunar Science
Citizen Science
Astromaterials
Aeronautics Research
Human Space Travel Research

Aeronautics

Science in the Air
NASA Aircraft
Flight Innovation
Supersonic Flight
Air Traffic Solutions
Green Aviation Tech
Drones & You

Technology

Technology Transfer & Spinoffs
Space Travel Technology
Technology Living in Space
Manufacturing and Materials
Robotics
Science Instruments
Computing

Learning Resources

For Kids and Students
For Educators
For Colleges and Universities
For Professionals
Science for Everyone
Requests for Exhibits, Artifacts, or Speakers
STEM Engagement at NASA

About NASA

NASA's Impacts
Centers and Facilities
Directorates
Organizations
People of NASA
Careers
Internships
Our History
Doing Business with NASA
Get Involved
Contact

NASA en Español

Ciencia
Aeronáutica
Ciencias Terrestres
Sistema Solar
Universo

News & Events

News Releases
Recently Published
Video Series on NASA+
Podcasts & Audio
Blogs
Newsletters
Social Media
Media Resources
Events
Upcoming Launches & Landings
Virtual Guest Program

Multimedia

NASA+
Images
NASA Live
NASA Apps
Podcasts
Image of the Day
e-Books
Interactives
STEM Multimedia
NASA Brand & Usage Guidelines

Featured

NASA’s Webb Telescope Studies Moon-Forming Disk Around Massive Planet

NASA’s Webb Telescope Studies Moon-Forming Disk Around Massive Planet

article 2 months ago

Hubble Captures Puzzling Galaxy

Hubble Captures Puzzling Galaxy

article 2 months ago

NASA, Sierra Space Modify Commercial Resupply Services Contract

NASA, Sierra Space Modify Commercial Resupply Services Contract

article 2 months ago

Highlights

Astronaut Candidates Get to Work at Johnson Space Center

Astronaut Candidates Get to Work at Johnson Space Center

article 2 months ago

NASA Opens 2026 Human Lander Challenge for Life Support Systems, More

NASA Opens 2026 Human Lander Challenge for Life Support Systems, More

article 2 months ago

NASA, Sierra Space Modify Commercial Resupply Services Contract

NASA, Sierra Space Modify Commercial Resupply Services Contract

article 2 months ago

Highlights

Amendment 17: Proposal Due Dates Reset for A.7 Water Quality Applications and A.8 Water Resources Applications.

Amendment 17: Proposal Due Dates Reset for A.7 Water Quality Applications and A.8 Water Resources Applications.

article 20 hours ago

NASA, European Partners Set to Launch Sentinel-6B Earth Satellite

NASA, European Partners Set to Launch Sentinel-6B Earth Satellite

article 3 days ago

6 Things to Know From NASA About New US, European Sea Satellite

6 Things to Know From NASA About New US, European Sea Satellite

article 4 days ago

Highlights

3I/ATLAS Facts and FAQS

3I/ATLAS Facts and FAQS

article 5 days ago

October’s Night Sky Notes: Let’s Go, LIGO!

October’s Night Sky Notes: Let’s Go, LIGO!

article 2 months ago

Background

Background

article 2 months ago

Featured

What to Observe

What to Observe

article 2 days ago

EW_release_story

EW_release_story

article 2 days ago

How to Observe

How to Observe

article 2 days ago

Highlights

Amendment 19: A.2 Earth Venture: TROPICS and PREFIRE Science and Applications Teams Step-2 Proposal Due Date Reset to January 13, 2026.

Amendment 19: A.2 Earth Venture: TROPICS and PREFIRE Science and Applications Teams Step-2 Proposal Due Date Reset to January 13, 2026.

article 16 hours ago

Amendment 18: Due Dates Reset for A.9 User-Centered Applications with Large Earth Foundation Models

Amendment 18: Due Dates Reset for A.9 User-Centered Applications with Large Earth Foundation Models

article 20 hours ago

Amendment 17: Proposal Due Dates Reset for A.7 Water Quality Applications and A.8 Water Resources Applications.

Amendment 17: Proposal Due Dates Reset for A.7 Water Quality Applications and A.8 Water Resources Applications.

article 20 hours ago

Highlights

NASA Flights Study Cosmic Ray Effects for Air, Future Space Travelers

NASA Flights Study Cosmic Ray Effects for Air, Future Space Travelers

article 2 months ago

NASA, Partners Push Forward with Remotely Piloted Airspace Integration

NASA, Partners Push Forward with Remotely Piloted Airspace Integration

article 2 months ago

Aeronautics e-Books

Aeronautics e-Books

article 2 months ago

Highlights

NASA, Industry Weave Data Fabric with Artificial Intelligence

NASA, Industry Weave Data Fabric with Artificial Intelligence

article 19 hours ago

Amendment 9: F.10 PRISM Final Text and Due Dates

Amendment 9: F.10 PRISM Final Text and Due Dates

article 2 months ago

NASA’s Deep Space Communications Demo Exceeds Project Expectations

NASA’s Deep Space Communications Demo Exceeds Project Expectations

article 2 months ago

Featured

Join Artemis

Join Artemis

article 1 day ago

Featured

From City Lights to Moonlight: NASA Training Shows How Urban Parks Can Connect Communities with Space Science

From City Lights to Moonlight: NASA Training Shows How Urban Parks Can Connect Communities with Space Science

article 2 months ago

NASA Opens 2026 Human Lander Challenge for Life Support Systems, More

NASA Opens 2026 Human Lander Challenge for Life Support Systems, More

article 2 months ago

International Space Station: Launching NASA and Humanity into Deep Space

International Space Station: Launching NASA and Humanity into Deep Space

article 2 months ago

Highlights

Pódcast en español de la NASA estrena su tercera temporada

Pódcast en español de la NASA estrena su tercera temporada

article 5 months ago

Las carreras en la NASA despegan con las pasantías

Las carreras en la NASA despegan con las pasantías

article 6 months ago

El X-59 de la NASA completa las pruebas electromagnéticas

El X-59 de la NASA completa las pruebas electromagnéticas

article 8 months ago

Sitemap

December 21, 2007

Home
Sitemap
2007
12
December 21, 2007

Coal Controversy in Appalachia

National Aeronautics and Space Administration

NASA explores the unknown in air and space, innovates for the benefit of humanity, and inspires the world through discovery.

About NASA's Mission

Home
News & Events
Multimedia
NASA+
Missions
Humans in Space
Earth
The Solar System
The Universe
Science
Aeronautics
Technology
Learning Resources
About NASA
NASA en Español

Follow NASA

More NASA Social Accounts
NASA Newsletters

Sitemap
For Media
Privacy Policy
FOIA
No FEAR Act
Office of the IG
Budget & Annual Reports
Agency Financial Reports
Contact NASA
Accessibility

Responsible NASA Official:

Abigail Bowman

Was this page helpful?

Was this page helpful?

Yes

No