Asteroids,also known as “minor planets”,are numerous in the outer space.

小行,为“小型行”,在外太空中不计其数。

The researchers concluded that the heat generated by the joint decay of 26Al and 60Fe could not have caused asteroidal melting.

研究员认为铝26和铁60产生的热加起来，仍无法使小行熔化。