Personal Growth — October 9, 2009

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A weekly newsletter featuring the biggest ideas from the smartest people

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A weekly newsletter featuring the biggest ideas from the smartest people

Ask Ethan: Does the CMB really “prove” the Big Bang?

Since the mid-1960s, the CMB has been identified with the Big Bang’s leftover glow. Could any alternative explanations still work?

Abstract image of a dark central circle surrounded by radial green and yellow light streaks resembling an eye or vortex.

Hard Science

Signs of “neutrino fog” emerge, complicating searches for dark matter

The race to find dark matter could grow more complex with high-energy neutrino interference.

Colorful geometric design painted on the balustrades of a staircase against a pale building background.

Neuropsych

Color is in the eye, and brain, of the beholder

The color of the shirt you’re wearing right now depends on many factors, from your eye shape to what language you speak.

Comparison of a star's image, Vega, as taken by the Hubble Telescope (left, with starburst pattern) and the JWST (right, with clear circular halo).

Starts With A Bang

JWST compels us to ask: what’s wrong with Vega?

The 5th brightest star in our night sky is young, blue, and apparently devoid of massive planets. New JWST observations deepen the mystery.

Comparison of early Mars with abundant water and a thicker atmosphere versus the dry and arid Mars of today, much like Venus, which also died in terms of its potential to support life.

Starts With A Bang

Mars could have lived, even without a magnetic field

Mars and Earth were sister planets in many ways, with early similar conditions. Why did Mars die? The leading explanation isn’t universal.

Up Next

Culture & Religion

The human mind

Most people. in fact I have never met anyone who the slightest idea of the working of own mind their motivation. They are just a collection of beliefs that rule their thinking and their every thought. They disagree with other people without understanding anything they have said. They propound wisdom , that they are incapable of comprehending what they have just said ,as I see it,I have also done. and I am still doing. as for as I can tell.