| get hotter | 0.59 |
| remain intact | 0.54 |
| reach temperature | 0.41 |
| become active | 0.35 |
| experience marked incre… | 0.29 |
| produce appreciable amo… | 0.29 |
| extend to about 0.2 sol… | 0.29 |
| sustain nuclear fusion | 0.25 |
| collapse into black hole | 0.25 |
| correct the perturbation | 0.25 |
| More » |
| believed to be made of … | 0.38 |
| subdivided | 0.25 |
| composed of helium | 0.25 |
| exposed | 0.16 |