NASA found some evidence proving that there is life is an unknown planet, so they send you and your team to investigate the planet. Now, you need to roam around the planet several times to find some DNA samples, but don’t get disappointed if you can’t find an actual alien, at least yet.
Now, as explained before, your job is to collect some alien DNA. Try to get as much as alien DNA, but you don’t need to get them all so if you can’t reach it then just leave it. Sometimes there will be broken robots lying around the planet (must be from an earlier exploration). Of course, if happened to see a broken satellite, you need to repair it as soon as possible.