APOD 3.8

"images" takes you to Planetary Journal where you can find the picture.
"Mars Reconnaissance Orbiter" takes you to Wikipedia to learn about the MRC.
"current leading hypothesis" takes you to JPL to read a news update about Mars.
"bleached" takes you to Wikipedia to learn about bleach.
"Earth" takes you to an APOD entitled "Welcome to Planet Earth."
"microbial life" takes you to microbworld to learn about microbes.
"Candor Chasma" takes you to an APOD entitled "Candor and Ophir Chasmata."
"Valles Marineris" takes you to an APOD entitled "Valles Marineris: The Grand Canyon of Mars."
"Mars" takes you to a website on Mars.