Henrietta Swan Leavitt, in 1893, joins the Harvard computers, a group of women engaged in the production of astronomical data at Harvard; she is instrumental in discovery of the cepheid variable stars, which were evidence for the expansion of the universe.

Henrietta Swan Leavitt, in 1893, joins the Harvard computers, a group of women engaged in the production of astronomical data at Harvard; she is instrumental in discovery of the cepheid variable stars, which were evidence for the expansion of the universe.

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Hubble image of variable star RS Puppis: is a Cepheid variable star in the constellation of Puppis. It is one of the brightest known Cepheids in the Milky Way galaxy.  It is located in a nebula, about 6500 ly distance.

Hubble image of variable star RS Puppis: is a Cepheid variable star in the constellation of Puppis. It is one of the brightest known Cepheids in the Milky Way galaxy. It is located in a nebula, about 6500 ly distance.

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Global Gallery Cepheid Variable Star by NASA Framed Photographic Print Size: 34" H x 34" W

Global Gallery Cepheid Variable Star by NASA Framed Photographic Print Size: 34" H x 34" W

Global Gallery 'Cepheid Variable Star' by NASA Framed Grapic Art Size: 30" H x 30" W

Global Gallery 'Cepheid Variable Star' by NASA Framed Grapic Art Size: 30" H x 30" W

The expansion of the universe is getting out of hand. According to recent measurements by a Nobel prizewinning team, space is stretching 9 per cent faster than we think it should be – yanking distant galaxies away from us at a rate that defies easy explanation. https://www.newscientist.com/article/2091933-why-is-the-universe-expanding-9-per-cent-faster-than-we-thought/

The expansion of the universe is getting out of hand. According to recent measurements by a Nobel prizewinning team, space is stretching 9 per cent faster than we think it should be – yanking distant galaxies away from us at a rate that defies easy explanation. https://www.newscientist.com/article/2091933-why-is-the-universe-expanding-9-per-cent-faster-than-we-thought/

#Astronomy: This planet briefly pulls its star into a cepheid variable stage — #Exoplanets

#Astronomy: This planet briefly pulls its star into a cepheid variable stage — #Exoplanets

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