The electromagnetic spectrum represents the complete range of electromagnetic radiation. The region of the spectrum with a shorter wavelength than the color violet is referred as ultraviolet radiation, and the region of the spectrum with a longer wavelength than the color red is referred to as infrared radiation.
The energy that reaches the Earth is known as solar radiation. The region of the spectrum referred to as visible light light our eyes can detect is composed of relatively short wavelengths in the range nanometers nm , or 0.
Skip to Main Content Area. Home About Resources References. Energy: The Driver of Climate. Electromagnetic Waves Electromagnetic waves are waves that can cause charged particles such as electrons to move up and down. The presence of greenhouse gases make the atmosphere absorb more heat, reducing the fraction of outbound EM waves that pass through. Known as the greenhouse effect, this is the reason why heat can build up some more. The Earth is not the only planet that experiences the greenhouse effect.
Read about the greenhouse effect taking place in Venus here in Universe Today. Relax and listen to some interesting episodes at Astronomy Cast. Want to know more about Ultraviolet Astronomy?
How different is it from Optical Astronomy? RISE —. PHASE —. Tonight's Sky — Change location. US state, Canadian province, or country. Tonight's Sky — Select location. Tonight's Sky — Enter coordinates. UTC Offset:. Picture of the Day Image Galleries. Watch : Mining the Moon for rocket fuel. Queen guitarist Brian May and David Eicher launch new astronomy book. Last chance to join our Costa Rica Star Party! Learn about the Moon in a great new book New book chronicles the space program.
Dave's Universe Year of Pluto. Groups Why Join? Astronomy Day.
0コメント