Planetary habitability
Planetary habitability is the measure of a planet's or a natural satellite's potential to develop and sustain life. Life may develop directly on a planet or satellite or be transferred to it from anot...
Planetary habitability - Wikipedia
New Super-Earth May Be Best Yet for Finding Signs of Life
The potentially habitable world is close enough that existing telescopes could look for an atmosphere and sniff for traces of extraterrestrials.
A Newly Made RNA Strand Bolsters Ideas About How Life On Earth Began
RNA molecule is able to synthesize other RNAs, a feat believed central to the origin of life
Earth-Like Planet Around Proxima Centauri Discovered
In what may prove to be the most exciting find to date, the German weekly Der Spiegel announced recently that astronomers have discovered an Earth-like planet orbiting Proxima Centauri, just 4.25 lig...
Earth-Like Planet Around Proxima Centauri Discovered
According to an unnamed source, the ESO has discovered a habitable planet orbiting Proxima Centauri, making it the closest Earth-like planet discovered to date
Solar Superflares May Have Sparked Life by Warming Earth
Life on Earth may owe its existence to incredibly powerful storms that erupted on the sun long ago, a new study suggests.
Moon was produced by a head-on collision between Earth and a forming planet
The violent impact with a “planetary embryo” called Theia occurred approximately 100 million years after the Earth formed, UCLA geochemists and colleagues report. The researchers analyzed seven rocks ...
Advance In Astronomy 'Can Help Find Other Worlds'
The pull of gravity on a distant star can now be measured more accurately, shedding light on other worlds, say astronomers. The method makes it possible to study even the faintest of stars. "Our techn...
This Is The Closest Planet Yet That Could Support Life Beyond Our Solar System
Most potentially habitable exoplanets are at least hundreds of light-years away, but Wolf 1061c is just next door, galactically speaking.
Uncovering The Secrets Of Ice That Burns
Methane hydrates can be seen as a potential energy source or as a dangerous source of methane - a greenhouse gas that is 20 times more potent than CO2. With the help of a supercomputer and an interdis...
Life On Earth Likely Started At Least 4.1 Billion Years Ago — Much Earlier Than Scientists Had Thought
Discovery indicates that life may have begun shortly after the planet formed 4.54 billion years ago. “Life on Earth may have started almost instantaneously,” added Harrison, a member of the National A...
NASA's About To Make A BIG Announcement TODAY, Watch It LIVE Here!
July 23, 2015 - NASA has had a pretty big month already, but apparently the US space agency's not done yet. The Ames Research Centre team has revealed that they'll be making a big announcement on Thur...
Stars Predicted To Average Two Planets In Habitable Zone
A team of astronomers have dramatically raised the estimate for the number of Earth-like planets in our galaxy that might support life. Their study suggests that stars have an average of two planets a...
Habitable zone
In astronomy and astrobiology, the circumstellar habitable zone (CHZ), or simply the habitable zone, colloquially known as the Goldilocks zone, is the region around a star within which planetary-mass ...
Habitable zone - Wikipedia
Variable Star
Variable Star is a 2006 novel written by Spider Robinson based on the surviving seven pages of an eight-page 1955 novel outline by the late Robert A. Heinlein. The book is set in a divergent offshoot ...
Variable Star - Wikipedia
Metallicity
In astronomy and physical cosmology, the metallicity or Z, is the proportion of its matter making up the chemical elements in stars or other kinds of astronomical objects, excluding their hydrogen (X)...
Geochemistry
Geochemistry is the science that uses the tools and principles of chemistry to explain the mechanisms behind major geological systems such as the Earth's crust and its oceans. The realm of geochemis...
Habitability of red dwarf systems
The habitability of red dwarf systems is determined by a large number of factors from a variety of sources. Although the low stellar flux, high probability of tidal locking, small circumstellar habit...
Habitability of red dwarf systems - Wikipedia
Hypothetical types of biochemistry
Hypothetical types of biochemistry are forms of biochemistry speculated to be scientifically viable but not proven to exist at this time. The kinds of living beings currently known on Earth all use ca...
Hypothetical types of biochemistry - Wikipedia
Atmosphere of Venus
The atmosphere of Venus is much denser and hotter than that of Earth. The temperature at the surface is 740 K (467 °C, 872 °F), while the pressure is 93 bar. The Venusian atmospher...
Atmosphere of Venus - Wikipedia
Lakes of Titan
The lakes of Titan, a moon of Saturn, are bodies of liquid ethane, methane, and propane that have been detected by the Cassini–Huygens space probe, and had been suspected long before. The large ones a...
Lakes of Titan - Wikipedia
New Super-Earth May Be Best Yet for Finding Signs of Life
The potentially habitable world is close enough that existing telescopes could look for an atmosphere and sniff for traces of extraterrestrials.
Shadow biosphere
A shadow biosphere is a hypothetical microbial biosphere of Earth that uses radically different biochemical and molecular processes than currently known life. Although life on Earth is relatively well...
Natural satellite habitability
Natural satellite habitability is the measure of a natural satellite's potential to sustain life. It is an emerging study which is considered important to astrobiology for several reasons, foremost be...
Natural satellite habitability - Wikipedia
Organoboron chemistry
Organoborane or organoboron compounds are chemical compounds that are organic derivatives of BH3, for example trialkyl boranes. Organoboron chemistry or organoborane chemistry is the chemistry of thes...
Organoboron chemistry - Wikipedia
Carbon-based life
Carbon forms the key component for all known naturally occurring life on Earth. Complex molecules are made up of carbon bonded with other elements, especially oxygen, hydrogen and nitrogen, and carbon...
A Newly Made RNA Strand Bolsters Ideas About How Life On Earth Began
RNA molecule is able to synthesize other RNAs, a feat believed central to the origin of life
Iron-sulfur world theory
The iron–sulfur world theory is a set of proposals for the origin of life and the early evolution of life advanced in a series of articles between 1988 and 1992 by Günter Wächtershäuser, a Munich pate...