BFF-75 Mars makes closest approach to Earth in 15 years

ZCZC

BFF-75

US-SPACE-MARS

Mars makes closest approach to Earth in 15 years

LOS ANGELES, July 31, 2018 (BSS/AFP) – Earth’s neighboring planet, Mars,
is closer than it has been in the past 15 years, offering unusually bright
views of the Red Planet’s auburn hues.

“The Red Planet and Earth haven’t been this close since 2003, and won’t be
again until 2035,” NASA said.

Astronomers around the world trained their telescopes on the sky on July
31, when the Red Planet was 35.8 million miles (57.6 million kilometers)
away.

One popular public viewing spot was the Griffith Observatory in Los
Angeles, where Mars was visible with the naked eye as a bright orange spot in
the sky, according to a live broadcast held to mark the celestial event.

“Mars is invading us tonight,” said observatory director Ed Krupp.

The nearest point to Earth in Mars’ elliptical orbit came at around 1100
GMT on Tuesday, NASA said.

Astronomers are interested in Mars’ travel path because it helps decide the
best times for spacecraft to launch.

When the Sun, Eart and Mars are lined up, with Earth sitting in between, a
phenomenon called “opposition” is in effect, giving the brightest view of
Mars.

But also, “around the time of opposition, a planet is at its closest
distance to Earth for a given year,” the US space agency explained.

Since the Earth and Mars align in opposition about every two years, “this
is why most NASA missions to the Red Planet are at least two years apart —
to take advantage of the closer distance.”

This year’s close approach is not a record-breaker.

The minimum distance from the Earth to Mars is about 33.9 million miles
(54.6 million kilometers), and is rarely achieved.

The last closest approach was in 2003, when Mars was 34.6 million miles
(55.7 million kilometers) from Earth “and the closest it had been in nearly
60,000 years,” said NASA.

Another close encounter like 2003’s will not happen until the year 2287.

For those who missed the closest approach, not to worry. Mars will still be
visible in the night sky for the next few months.

BSS/AFP/MRI/2304 hrs