Word: planetsized
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Dates: during 1990-1999
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Cruising through the cosmos at 27,700 m.p.h., the Energizer bunny of NASA spacecraft is measuring cosmic rays and solar emissions, probing for the outer boundary of the solar system and even abetting the efforts of scientists pursuing SETI, the Search for Extraterrestrial Intelligence. When Pioneer was launched in March...
We have long speculated that if there are other warm, wet and cozy planets like ours, they might harbor carbon-based life like ours. Unfortunately, the vast majority of places out there are depressingly and forbiddingly unearthlike. We figured that life there, if at all possible, would probably come in...
We spend billions of dollars on missions to planets. If we do discover life in space, what then? Do we invite the space microbes (which is all that's determined to be in the rock) for a visit to the White House? Call me a wet blanket if you wish...
In general, trans-Martian travel is possible for only six to eight weeks every 25 months; it is then that Mars' and Earth's orbital pas de deux around the sun brings the two planets close enough to make the trip practical. The next window opens this fall, and NASA...
The Mars discovery made us wonder not only about whether there was life on Mars, but also why life exists at all. It was an ideal story for TIME, which has always sought to wrestle with the ramifications of startling headlines; just last February we did a cover called "Is...