TY - JOUR N2 - Not everything which comes from the sky is good for us. But if we’re worried about comets or meteorites crashing into Earth, we should also remember that much of what comes to us from the sky can be the source of momentous discoveries. L1 - http://www.czasopisma.pan.pl/Content/112476/PDF/038-041%20hellwing_ang.pdf L2 - http://www.czasopisma.pan.pl/Content/112476 PY - 2017 IS - Nr 4 (56) 2017 Extremes EP - 41 KW - comets KW - meteorites KW - astrophysics A1 - Hellwing, Wojciech PB - Polish Academy of Sciences DA - 31.12.2017 T1 - What falls from the sky SP - 38 UR - http://www.czasopisma.pan.pl/dlibra/publication/edition/112476 T2 - ACADEMIA. The magazine of the Polish Academy of Sciences ER -