Detection of Earth-like planets around nearby stars using a petal-shaped occulter

Article Abstract:

A petal-shaped occulter design of a shield outside a telescope is proposed for direct observation of Earth-like planets that would achieve the required suppression of starlight scatter and diffraction and can be built with existing technology. Terrestrial planets could be seen and studied around stars to a distance of ten parsecs, when such an occulter modified with a simple deployable sheet is flown in formation with a telescope of at least one meter aperture.

United States, Analysis, Observations, Stars, Diffraction, Stellar structure, Space telescopes

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Laboratory detection of X-ray fringes with a grazing-incidence interferometer

Article Abstract:

Research is presented concerning the development of an X-ray interferometer which can be adapted for use in astronomical observation. The use of the interferometer to study blast waves, pulsars and astrophysical jets is discussed.

Design and construction, Letter to the Editor, Astronomical instruments, Interferometers

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A twisted look at the X-ray sky

Article Abstract:

A team of scientists has adopted existing technology for particle-physics experiments to create a new X-ray polarimetry tool that makes it possible to see black holes.

Research, Equipment and supplies, Astronomy, X-ray astronomy

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