PULL · 26 OCT 2002

This was
your sky.

Dark Matter, X-rays, and NGC 720

NASA APOD

COSMIC MESSAGE

Galaxy NGC 720 is surrounded by a cloud of X-ray emitting gas, seen here in a false-color image from the Chandra X-ray Observatory. This gas is extremely hot, around 7 million degrees Celsius. Its presence suggests that the galaxy's visible stars alone cannot contain it, providing evidence for dark matter.

CREDIT

PUBLIC DOMAIN NASA APOD

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EXPORT AS

SB-2002-10-26

UNCOMMON

2002-10-26 · ♏

SKYBORN

Dark Matter, X-rays, and NGC 720

NASA APOD

BORN 8646 days ago

SKYBORN.APP

Move your cursor across the card to tilt it. Holographic foil ripples through the edges and surface as you go.

ZODIAC CONTEXT

♏

SCORPIO

In tropical astrology, 26 OCT 2002 falls under Scorpio (♏). The sign's window runs from 10-23 through 11-21. Scorpio is marked by Antares, a red supergiant the size of Mars's orbit. The Sun was crossing this region of the sky on 26 OCT 2002.

THE ALMANAC FOR 26 OCT 2002

DAY

Saturday

MOON

Waning gibbous, 75% lit

POSITION

Day 299 of 365

METEOR SHOWER

Orionid shower, peaked 5 days ago

SAME DAY, OTHER YEARS

NEARBY DATES

This was your sky.

Dark Matter, X-rays, and NGC 720

This was
your sky.