John Glenn – the first American in orbit

An evening pause: On the fiftieth anniversary of John Glenn’s orbital flight.

After putting a chimpanzee into orbit in November, NASA finally felt ready to send a man into orbit to answer the Soviets and their two manned orbital missions of Gagarin and Titov the previous year.

After Glenn’s mission and for the next few months, it looked like the U.S. was catching up with the Soviets in space. That would change before the year was summer was over.

The video below gives a nice summary of key moments in Glenn’s flight, though the special effects of the “fireflies” is poorly done. And we now know that the “fireflies” were nothing more than frozen particles of condensation coming off the capsule.

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Obama’s war on religious liberty

Obama’s war on religious liberty.

I would simply say that this is a war on liberty. You take away someone’s freedom to pray or practice their religion as they wish, you also take away their liberty. And if you can take their liberty, you can take anyone’s. For those who like the idea of forcing every insurance company and private institution to provide contraceptives, remember, if this administration gains that power, future administrations will have that power as well. And there is no guarantee that those future administrations will impose policies you agree with. To paraphase an old quote, “First they came for the Catholics, and I did nothing, because I wasn’t a Catholic…”

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Mapping the surface of an extrasolar planet light years away.

Mapping the surface of an extrasolar planet light years away. From the paper’s abstract [pdf]:

We use archived Spitzer [Space Telescope] data of [the star] HD189733 … encompassing six transits, eight secondary eclipses, and a phase curve in a two-step analysis. The first step derives the planet-star system parameters. The second step investigates the structure found in eclipse scanning, using the previous planet-star system parameter derivation as Gaussian priors.

We find a 5-sigma deviation from the expected occultation ingress/egress shape for a uniform brightness disk, and demonstrate that this is dominated by large-scale brightness structure and not an occultation timing offset due to a non-zero eccentricity. Our analysis yields a 2D brightness temperature distribution showing a large-scale asymmetric hot spot whose finer structure is limited by the data quality and planet orbit geometry. [emphasis mine]

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