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This cutaway image of Pluto shows a section through the area of Sputnik Planitia

Is There a Subsurface Ocean On Pluto?

A liquid ocean lying deep beneath Pluto’s frozen surface is the best explanation for features revealed by NASA’s New Horizons spacecraft, according to a new analysis. The idea that Pluto has a subsurface ocean is not new, but the study provides the most detailed investigation yet of its likely role in the evolution of key […]

Meteorite accumulation at Victoria Crater.

Meteorites reveal lasting drought on Mars

The lack of liquid water on the surface of Mars today has been demonstrated by new evidence in the form of meteorites on the Red Planet examined by an international team of planetary scientists. In a study led by the University of Stirling, an international team of researchers has found the lack of rust on […]

Hellas depression

A Funnel On Mars: Good Place to Look for Life

A strangely shaped depression on Mars could be a new place to look for signs of life on the Red Planet, according to a University of Texas at Austin-led study. The depression was probably formed by a volcano beneath a glacier and could have been a warm, chemical-rich environment well suited for microbial life. The […]

The intensity of FRB 150807 at different radio frequencies or colors -- red corresponds to lower frequencies and blue to higher frequencies. The x-axis is time. The fine structure in the burst is the scintillation or twinkling--the rays interfere constructively and destructively differently at different frequencies. This pattern provides insights into the turbulence in plasma towards the burst.

Bright radio bursts probe universe’s hidden matter

Fast radio bursts, or FRBs, are mysterious flashes of radio waves originating outside our Milky Way galaxy. A team of scientists, jointly led by Caltech postdoctoral scholar Vikram Ravi and Curtin University research fellow Ryan Shannon, has now observed the most luminous FRB to date, called FRB 150807. Though astronomers still do not know what […]