PULL · 23 JUL 2003

This was
your sky.

GRACE Maps the Gravity of Earth

NASA APOD
COSMIC MESSAGE

Why do some places on Earth have higher gravity than others? To better understand Earth's surface, slight distance changes between a pair of orbiting GRACE satellites created this map of Earth's gravitational field. High points, colored red, indicate areas where gravity is slightly stronger than usual. Blue areas indicate slightly weaker gravity. Many bumps and valleys on the map are attributable to surface features.

CREDIT
PUBLIC DOMAIN NASA APOD
EXPORT AS
SB-2003-07-23
COMMON
GRACE Maps the Gravity of Earth
2003-07-23 · ♌
SKYBORN
GRACE Maps the Gravity of Earth
NASA APOD
BORN 8376 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
LEO

In tropical astrology, 23 JUL 2003 falls under Leo (♌). The sign's window runs from 07-23 through 08-22. Leo is anchored by Regulus, the heart of the Lion, twenty-four parsecs from Earth. The Sun was crossing this region of the sky on 23 JUL 2003.

THE ALMANAC FOR 23 JUL 2003
DAY
Wednesday
MOON
Last quarter, 32% lit
POSITION
Day 204 of 365