![ESCAPE TO TITAN](https://magarticles.magzter.com/articles/15256/515828/5f69eec908429/ESCAPE-TO-TITAN.jpg)
Our planet may have survived for 4.5 billion years, but humanity faces some major threats. There’s always the possibility that an asteroid will wipe us out, just as one did for the dinosaurs some 65 million years ago. We could be engulfed by a gamma-ray burst or disrupted by a wandering star. There are also dangers closer to home, from volcanoes to nuclear war. Even supposing humans manage to survive all these threats, we can still say for certain that life here on Earth will eventually be no more. In around 5 billion years from now the Sun will undergo a massive change that will fundamentally alter our Solar System. It will cause the end of not only all life here on Earth, but possibly the entire planet, and we will have no choice other than to find somewhere else to live.
Astronomers have been looking at the possibilities of colonising other planets for years. Mars currently tops the list of destinations, with NASA working hard to develop the capabilities needed to send humans to the Red Planet in the 2030s. Yet some scientists are taking a much longer view. Rather than looking towards the terrestrial planets for our new home, they say humans will one day have to relocate to the outer Solar System if they want to survive. As it currently stands, sending scores of humans to live beyond the asteroid belt is out of the question. The four gas giants are utterly unsuitable for life, and the moons of the outer Solar System are well outside of the habitable zone – the region around the Sun where the atmospheric pressure is able to support liquid water, making conditions for life as we know it ‘just right’.
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7 æ¥éã® Magzter GOLD ç¡æãã©ã€ã¢ã«ãéå§ããŠãäœåãã®å³éžããããã¬ãã¢ã ã¹ããŒãªãŒã9,000 以äžã®éèªãæ°èã«ã¢ã¯ã»ã¹ããŠãã ããã
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![LONG AGO, A LAKE ON MARS MAY HAVE BEEN SPRAWLING WITH MICROBES](https://reseuro.magzter.com/100x125/articles/15256/1729654/KBMk_Cfs41719993738326/LONG-AGO-A-LAKE-ON-MARS-MAY-HAVE-BEEN-SPRAWLING-WITH-MICROBES.jpg)
LONG AGO, A LAKE ON MARS MAY HAVE BEEN SPRAWLING WITH MICROBES
Curiosity discovered manganese oxide in bedrock in a Martian region that may have been a shoreline billions of years ago
![MOON TOUR HELL](https://reseuro.magzter.com/100x125/articles/15256/1729654/ht0gO_mHi1719993459712/MOON-TOUR-HELL.jpg)
MOON TOUR HELL
Finding this fascinating crater isnt as hard as its name suggests...
![THIS MONTH'S PLANETS](https://reseuro.magzter.com/100x125/articles/15256/1729654/-7K-H52mO1719993250345/THIS-MONTHS-PLANETS.jpg)
THIS MONTH'S PLANETS
Most of the planets are tricky targets this month, but our guide will help you locate them
![UNIVERSE BEFORE TIME](https://reseuro.magzter.com/100x125/articles/15256/1729654/cHFLjjJOS1719991851680/UNIVERSE-BEFORE-TIME.jpg)
UNIVERSE BEFORE TIME
Could the existence of a mirror-image cosmos before the Big Bang solve some of the biggest mysteries in astronomy?
![CLIMATE CHANGE IN THE SOLAR SYSTEM](https://reseuro.magzter.com/100x125/articles/15256/1729654/Se3Bbyf0G1719991384386/CLIMATE-CHANGE-IN-THE-SOLAR-SYSTEM.jpg)
CLIMATE CHANGE IN THE SOLAR SYSTEM
Alongside Earth, our planetary neighbourhood is changing, but itâs not for the betterâŠ
![Stars give tiny planets a gravitational 'squeeze' to strip away their atmospheres](https://reseuro.magzter.com/100x125/articles/15256/1729654/QMnZ5oBmH1719991224194/STARS-GIVE-TINY-PLANETS-A-GRAVITATIONAL-SQUEEZE-TO-STRIP-AWAY-THEIR-ATMOSPHERES.jpg)
Stars give tiny planets a gravitational 'squeeze' to strip away their atmospheres
A scientist has learned more about the violent processes that rip atmospheres away from planets, finding that squashing and squeezing by a parent star can contribute to this process.
![The Milky Way's halo is filled with âmagnetic doughnuts' as wide as 100,000 light years](https://reseuro.magzter.com/100x125/articles/15256/1729654/zhhazHOyf1719991166108/THE-MILKY-WAYS-HALO-IS-FILLED-WITH-MAGNETIC-DOUGHNUTS-AS-WIDE-AS-100000-LIGHT-YEARS.jpg)
The Milky Way's halo is filled with âmagnetic doughnuts' as wide as 100,000 light years
The outer halo of the Milky Way is filled with magnetic fields that take the shape of vast doughnuts with diameters ranging from 12,000 to 100,000 light years, with the heart of our galaxy at their centre.
![The Pentagon wants the commercial space reserve to support military satellites in orbit](https://reseuro.magzter.com/100x125/articles/15256/1729654/RRDjAi68P1719991027212/THE-PENTAGON-WANTS-THE-COMMERCIAL-SPACE-RESERVE-TO-SUPPORT-MILITARY-SATELLITES-IN-ORBIT.jpg)
The Pentagon wants the commercial space reserve to support military satellites in orbit
The US Department of Defense is developing a plan to use the ever-growing American commercial space industry for national security purposes.
![DOES A COSMIC 'GLITCH' IN GRAVITY CHALLENGE ALBERT EINSTEIN'S GREATEST THEORY?](https://reseuro.magzter.com/100x125/articles/15256/1729654/qd-Mswgsf1719990737533/DOES-A-COSMIC-GLITCH-IN-GRAVITY-CHALLENGE-ALBERT-EINSTEINS-GREATEST-THEORY.jpg)
DOES A COSMIC 'GLITCH' IN GRAVITY CHALLENGE ALBERT EINSTEIN'S GREATEST THEORY?
Gravity changes once you reach a cosmic scale
![DEEP SKY CHALLENGE : STELLAR TREASURES OF THE ARCHER AND SCORPION](https://reseuro.magzter.com/100x125/articles/15256/1729654/kQkKImKfQ1719990358327/DEEP-SKY-CHALLENGE-STELLAR-TREASURES-OF-THE-ARCHER-AND-SCORPION.jpg)
DEEP SKY CHALLENGE : STELLAR TREASURES OF THE ARCHER AND SCORPION
Summer skies are stuffed full of amazing objects for your telescope - if you're prepared to stay up late