Why SuperEarths are not Earthlike

Kepler data indicate that there are many planets that could be Earthlike in the sense of having a similar bulk composition. I will explain why such planets are unlikely to be Earthlike in other respects, especially if they are superEarths (three or so Earth masses or more). There are three main points here: (1) SuperEarths will not separate core from mantle because they are likely to be so hot internally that the critical temperature is reached for miscibility of iron alloy and silicate material.

Khayyam: A Tunable Spatial Heterodyne Spectrometer for Broadband Observation of Diffuse Emission Line Targets

Abstract: Sona Hosseini will report on progress toward development of a tunable spatial heterodyne spectrometer (TSHS) at the fixed focus of the Coudé Auxiliary Telescope (CAT) in the Shane Telescope at Lick Observatory (Khayyam). Spatial Heterodyne Spectrometer (SHS) instruments are a class of interferometric sensor capable of providing a combination of large étendue, high resolving power (R=λ/dλ~ 105) and wide field of view (FOV~0.5 degree) at Optical and NUV wavelengths in a compact format. 

Private Funding Opportunities for Space Research

Kollipara Horgan Bunger

Join our three expert panelists to find out about opportunities for funding science with venture capital and other commercial opportunities.

This event is co-hosted with the NIAC workshop, to be held at Stanford Feb 4-6 2014.


Sight-seeing in the 21st century -- ices, sand, water, and dust in motion on Mars

Humankind's earnest reconnaissance of Mars, made possible by advances in our technology, has progressed significantly over the past 150 years. Early ideas of vibrant macroscopic life on Mars in the late 19th and early 20th centuries gave way to a perception of a barren desert world 

Every Body is an Ark: How the microorganisms we carry will impact long term space travel

germsThe human microbiome is essential to our health and deserves special consideration in the closed environments of space travel. The dynamics of host-microbe interactions will change if normal immune functions are altered during extended space travel. Opportunistic pathogens common in the human microbiome, including those in the genera Candida, Aspergillus, and Staphylococcus, could spread among crewmembers and put them at risk of serious disease.


Subscribe to RSS - Uncategorized