- Wednesday May 24,2006 10:11 AM
- By Mike Lopez
- In Science and Nature
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Voyager 2 could pass beyond the outermost layer of our solar system, called the “termination shock,” sometime within the next year, NASA scientists announced at a media teleconference today.
The milestone, which comes about a year after Voyager 1’s crossing, comes earlier than expected and suggests to scientists that the edge of the shock is about one billion miles closer to the Sun in the southern region of the solar system than in the north.
This implies that the heliosphere, a spherical bubble of charged low-energy particles created by our Sun’s solar wind, is irregularly shaped, bulging in the northern hemisphere and pressed inward in the south.
SPACE.com — Voyager 2 Detects Odd Shape of Solar System’s Edge
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- Thursday May 18,2006 04:56 AM
- By Mike Lopez
- In Science and Nature
Three medium-sized planets of roughly the same mass as Neptune have been discovered around a nearby Sun-like star, scientists announced today.The planets were discovered around HD 69830, a star slightly less massive than the Sun located 41 light-years away in the constellation Puppis (the Stern), using the ultra-precise HARPS spectrograph on the European Southern Observatory’s 3.6-meter La Silla telescope in Chile.
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- Thursday May 18,2006 04:53 AM
- By Mike Lopez
- In Science and Nature
The earliest known ancestors of modern humans might have reproduced with early chimpanzees to create a hybrid species, a new genetic analysis suggests.Based on the study of human and chimp genomes, the scientists believe the split between the human and chimpanzee lines occurred much more recently than previously thought—no more than 6.3 million years ago and perhaps as recently as 5.4 million years ago.
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- Thursday May 18,2006 04:52 AM
- By Mike Lopez
- In Science and Nature
A huge slab of folded Earth that scientists think used to be part of the ocean floor has been detected near the planet’s core.The discovery supports the theory that Earth’s crust is constantly recycled deep into the planet as molten material from below simultaneously pushes up to refresh the surface.
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- Thursday May 18,2006 04:49 AM
- By Mike Lopez
- In Science and Nature
Maybe she’s smiling because she found the secret to immortality.Leonardo da Vinci’s “Mona Lisa,” widely considered the world’s most recognizable work of art, turns 500 this year. Maybe.
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- Tuesday May 16,2006 05:35 AM
- By Mike Lopez
- In Science and Nature
For centuries, humans have looked to the heavens for their gods and goddesses and clues for finding the nature of the universe.
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- Thursday May 11,2006 12:49 PM
- By Mike Lopez
- In Science and Nature
Astronauts are stomping around Mars without ever leaving Earth in Canada, where filming is underway for an ambitious new documentary and mini-series that blur the line between science fact and fiction.
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- Tuesday May 9,2006 12:18 PM
- By Mike Lopez
- In Science and Nature
TOKYO (AP) – Stung by repeated setbacks, Japan’s space agency plans to start talks next month with NASA about jointly developing a supersonic successor to the retired Concorde, an official said Monday.
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- Tuesday May 9,2006 12:17 PM
- By Mike Lopez
- In Science and Nature
One of the biggest mysteries in cosmology could be explained by a controversial theory in which the universe explodes into existence not just once, but repeatedly in endless cycles of death and rebirth.Called the cyclic universe theory, it could potentially explain why a mysterious repulsive form of energy known as the “cosmological constant” and which is accelerating the expansion of the universe is several orders of magnitude smaller than predicted by the standard Big Bang model.
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- Tuesday May 9,2006 12:01 PM
- By Mike Lopez
- In Science and Nature
A high-pitched “wee-o-wee-o-wee-o-wee” whistle might not sound like much to you, but it’s exactly how a dolphin might introduce itself.Because sight is limited in the ocean, dolphins create individual “name” calls to communicate their whereabouts to friends and families.
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