Author Archive

An Earth-Sized Planet in the Habitable Zone of a Cool Star

April 19, 2014 Leave a comment

Quintana et al., Science (2014)

Categories: Progress in Space

Habitable-zone super-Earth candidate in a six-planet system

November 9, 2012 Leave a comment

Habitable-zone super-Earth ONLY 42 lightyears away!

Categories: Progress in Space

How to hug a chicken via the internet.

October 27, 2012 Leave a comment

Adrian David Cheok the first person to hug a chicken via the Internet, has some advice for creative engineers trying to make their own mark on history. Rule one: Embrace your idiosyncrasies. Rule two: Get your hands dirty. Rule three: Don’t worry about the critics.

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Categories: Uncategorized

Speech-Jamming gun

March 1, 2012 Leave a comment

A japanese team of researchers have built a gun that can silence somebody from 30m distance. The basic idea is simple:
Psychologist have known for a long time that if your speech is recorded and send back to you after a short delay time, it will interupt your speach (Delayed Audio Feedback). The device now consists of a directional microphone that records the speakers voice and sends it back after a 0.2s delay via directional speakers.

New class of planets – GJ 1214 b

February 26, 2012 Leave a comment

The definition of planets has to be extended due to a press release from Harvard-Smithonian center of astrophysics. In short: There are three different types of planets: rocky, terrestrial worlds (Mercury, Venus, Earth, and Mars), gas giants (Jupiter and Saturn), and ice giants. A recent measurement requires to add water planets to our definition since it has been shown that GJ 1214 b consists of more than 50 % water and has a dense atmosphere.

Categories: Progress in Space

First two-dimensional map of an exoplanet

February 10, 2012 Leave a comment

Astronomers around Carl Majeau, Seattle, managed to get a two-dimensional image of an exoplanet. It’s an intensity map that has been calculated from measurements of its brightness. The technique they used is called eclipse mapping. In short: if a celestial body is passing behind another one, it is possible to extract information about its surface temperature. The white color marks a hot spot and one can clearly recognize its day side.

Molleweide projection of the 2D infrared map of HD189733b. Source: Original paper

Categories: Progress in Space

GJ667Cc – earth 2.0?

February 4, 2012 Leave a comment

A team of astonomers under direction of Guillem Anglada-Escudé has reported a new exoplanet called GJ667Cc. It circles a red dwarf with a period of 28.15 days and a minimum mass of 4.5 times the mass of earth. It lies in the habitable zone and is therefore a good candidate to support life. Its distance from earth is 22 lightyears.

Source: Original paper