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Habitable Zone
As it sounds, the habitable zone is a region capable of supporting life in a Solar System. Two different regions must meet the right conditions in order for it to be possible for life to exist. The...
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Habitable Planet
Habitable zone The term “habitable planet” seems rather broad. Does it mean that it is habitable for humans? Is it merely capable of supporting some other form of life? Quite simply, planetary...
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The Habitability of Gliese 581d
The Gliese 581 system has been making headlines recently for the most newly announced planet that may lie in the habitable zone. Hopes were somewhat dashed when we were reminded that the certainty...
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HARPS Tunes In On Habitable Planet
Artist Concept of Extra-Solar Planet Courtesy of NASA Using the High Accuracy Radial velocity Planet Searcher (HARPS), a team of scientists at University of Geneva, Switzerland, led by the Swiss...
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Cassini Slips Through Enceladus’ Spray
Cassini's latest view of Enceladus' icy spray, acquired on April 14, 2012. Spray it again, Enceladus! This Saturday the Cassini spacecraft paid another visit to Enceladus, Saturn’s 318-mile-wide moon...
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Searching for Exoplanet Oceans More Challenging Than First Thought
Earth Observation of sun-glinted ocean and clouds As astronomers continue to discover more exoplanets, the focus has slowly shifted from what sizes such planets are, to what they’re made of. First...
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Astronomers Find Tantalizing Hints of a Potentially Habitable Exoplanet
Dwarf star HD 40307 is now thought to host at least 6 exoplanet candidates… one of them well within its habitable zone. (G. Anglada/Celestia) Located 43 light-years away in the southern constellation...
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A Moon With Two Suns: Making Art from Science
A view of Kepler 47c and binary stars. ©Digital Drew. All rights reserved. What would it look like on a hypothetical icy moon orbiting the exoplanet Kepler 47c? Perhaps something like this. This is an...
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Opportunity Rover Discovers Martian Habitable Zone Favorable for Pre-biotic...
Opportunity captures a panoramic view of the road ahead to the raised rim of Solander Point (at left) which is some 0.8 mile (1.3 km) away. Arrival is targeted for August. It features a thick strata of...
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Opportunity rover marks Magic Moment on 10th Year since Launch with Mountain...
Opportunity rover’s view across Botany Bay to Solander Point – her next destination – as NASA celebrates 10 Years since blastoff for Mars on July 7, 2003. The rover will climb up Solander Point because...
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Water-Trapped Worlds Possible Around Red Dwarf Stars?
An artist’s concept of a rocky world orbiting a red dwarf star. (Credit: NASA/D. Aguilar/Harvard-Smithsonian center for Astrophysics). Hunters of alien life may have a new and unsuspected niche to...
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Kepler Can Still Hunt For Earth-Sized Exoplanets, Researchers Suggest
Illustration of the Kepler spacecraft (NASA/Kepler mission/Wendy Stenzel) Kepler may not be hanging up its planet-hunting hat just yet. Even though two of its four reaction wheels — which are crucial...
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22% of Sun-like Stars have Earth-sized Planets in the Habitable Zone
The “Goldilocks” zone around a star is where a planet is neither too hot nor too cold to support liquid water. Illustration by Petigura/UC Berkeley, Howard/UH-Manoa, Marcy/UC Berkeley. How common are...
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Opportunity Discovers That Oldest Rocks Reveal Best Chance for Martian Life
Pancam false-color view acquired on Sol 3066 (Sept. 8 2012) of fine-scale layering in the Whitewater Lake locality that is indicative of an ancient aqueous environment on Mars. Veneers have been...
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You are Here! Curiosity’s 1st Photo of Home Planet Earth from Mars
You are here! – As an Evening Star in the Martian Sky This evening-sky view taken by NASA’s Mars rover Curiosity shows the Earth and Earth’s moon as seen on Jan. 31, 2014, or Sol 529 shortly after...
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Kepler Has Found the First Earth-Sized Exoplanet in a Habitable Zone!
Artist’s rendering of the Earth-sized Kepler-186f (Credit: NASA Ames/SETI Institute/Caltech) It’s truly a “eureka” moment for Kepler scientists: the first rocky Earth-sized world has been found in a...
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What Steps Are Needed To Find More Earths?
Artist’s rendering of Kepler-186f (Credit: NASA Ames/SETI Institute/Caltech) It wasn’t so long ago that we found out there is an Earth-sized planet in a habitable zone of a star. But how many others...
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NASA’s Curiosity Rover Drills Deep into 3rd Martian Rock for Sampling Analysis
Composite photo mosaic shows deployment of NASA Curiosity rovers robotic arm and two holes after drilling into ‘Windjana’ sandstone rock on May 5, 2014, Sol 621, at Mount Remarkable as missions third...
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Opportunity Overlooks Ridge for Spectacular Vista of Vast Martian Crater and...
NASA’s Opportunity Mars rover captures sweeping panoramic vista near the ridgeline of 22 km (14 mi) wide Endeavour Crater’s western rim. The center is southeastward and also clearly shows the distant...
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Curiosity Celebrates Two Years on Mars Approaching Bedrock of Mountain...
2 Years on Mars! Curiosity treks to Mount Sharp, her primary science destination, in this photo mosaic view captured on Sol 669, June 24, 2014. Navcam camera raw images stitched and colorized. Credit:...
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