1. There was a lot of hydrogen around when the solar system was formed.

2. You need to get energy out without creating a hydrogen bomb.

3. NASA engineers resolved the issues but then discovered a problem with a hydrogen tank valve.

4. That created the extremely high pressure and temperatures needed to get the hydrogen atoms to fuse.

5. It just creates its own electricity onboard by combining hydrogen and oxygen.

6. Seven weeks have passed since North Korea claimed it conducted its first hydrogen bomb test.

7. For now, local pockets of hydrogen use are flourishing.

8. The hydrogen could be captured and pumped through a fuel cell to produce energy.

9. In a statement, Hyundai said it will take another decade before hydrogen cars gain wider acceptance.

10. The hydrogen acts as a buffer to produce electricity during those times.

11. The catalyst uses sunlight to split water into hydrogen and oxygen.

12. A test of a hydrogen bomb summons the movie monster from deep under the ocean.

13. The liquid hydrogen fuel is manufactured using electricity.