This photo was taken in December 1972 by the Apollo 17 crew. The spacecraft was traveling between the Earth and the Moon. The reddish landmass is Africa and Saudi Arabia which is desert. The white is both clouds and the ice covering Antarctica.
Click on image for full size
Image courtesy of NASA/JPL
Earth--What a Drag!?!
News story originally written on April 1, 1998
Have you ever played with 3D glasses? According to Albert Einstein
, there should be 4D glasses -- these glasses would see what is called space-time. Space-time has 4 dimensions (north-south, east-west, up-down and time).
Scientists have just found that the Earth drags space-time around itself as it rotates! You can think of the Earth like a bowling ball. Now if you put the ball in syrup and spun it around, the ball would spin the syrup around itself. The syrup in this example is like space-time.
You might also be interested in:
It was another exciting and frustrating year for the space science program. It seemed that every step forward led to one backwards. Either way, NASA led the way to a great century of discovery. Unfortunately,...more
The Space Shuttle Discovery lifted off from Kennedy Space Center on October 29th at 2:19 p.m. EST. The sky was clear and the weather was great. This was the America's 123rd manned space mission. A huge...more
Scientists found a satellite orbiting the asteroid, Eugenia. This is the second one ever! A special telescope allows scientists to look through Earth's atmosphere. The first satellite found was Dactyl....more
The United States wants Russia to put the service module in orbit! The module is part of the International Space Station. It was supposed to be in space over 2 years ago. Russia just sent supplies to the...more
A coronal mass ejection (CME) happened on the Sun last month. The material that was thrown out from this explosion passed the ACE spacecraft. ACE measured some exciting things as the CME material passed...more
Trees and plants are a very important part of this Earth. Trees and plants are nature's air conditioning because they help keep our Earth cool. On a summer day, walking bare-foot on the sidewalk burns,...more
There is something special happening in the night sky. Through mid-May, you will be able to see five planets at the same time! This doesn't happen very often, so you won't want to miss this. Use the links...more