While Mars will be overhead for people in central Chile, South African and Australia, it will be low in the southern sky for those watching in the U.S. and Europe. "We are not closer to actually detecting life", Dr. Patel said, "but what this finding does is give us the location of where to look on Mars".
Evidence for the Red Planet's watery past is prevalent across its surface in the form of vast dried-out river valley networks and enormous outflow channels clearly imaged by orbiting spacecraft.
Every two years or so, Mars' orbit brings it millions of miles closer to Earth than usual.
Between 2012 and December 2015 the Planum Australe region was mapped by the Mars Advance Radar for Subsurface and Ionosphere Sounding (Marsis) instrument carried on the orbiter.
Read Also Lunar Eclipse 2018: Tirumala Temple to be closed for over 12 hours on July 27 Bloodmoon is seen as the direct sunlight to the moon is restricted by the Earth. At its closest point beginning Friday night, the Red Planet will be 35.8 million miles away but will remain at peak brightness through August 3.
Mars will be at its brightest Friday night due to an opposition surge that is affected by the planet's angle of the sun - giving you the clearest view of the Red Planet. Around the time of opposition, a planet is at its closest distance to Earth for a given year.
As Saturn passed close to Earth, the Hubble Space Telescope couldn't miss the chance to snap it and six out of the 62 moons of the second-largest planet in our solar system.
This won't happen again until 2287, Nasa has predicted.
"There's a big storm going on in Mars at the moment", said Mackay. The detection of a long-standing reservoir of liquid water is thrilling evidence of an idea that began to be debated three decades ago: that there could be water at the base of Mars' ice caps, similar to what's present on Earth.
The claim has sent scientists and media into a spin, some claiming this is a definite sign of life on Mars, others urging caution.
Saturn's portrait is the first image of the planet taken as part of the Outer Planet Atmospheres Legacy (OPAL) project. During opposition, as NASA explains it, Mars and the sun are on directly opposite sides of Earth. OPAL is helping scientists understand the atmospheric dynamics and evolution of our solar system's gas giant planets.
For the past 28 years, the Hubble Space Telescope has captured some of the most iconic images of outer space.
Researchers from NASA probably felt a little offended.