I am looking for an old B-rated science fiction movie. All I remember are the astronauts are trapped on a planet, and there is a stationary alien probe that burns them every time they get near it. Does anyone know this film?
This is a bit of a long shot. But, the part about burning astronauts trapped on a planet sounds like Mission Mars starring Darren McGavin from 1968. It has an alien entity which burns the astronauts as they try to approach it.
The IMDB site is here:
A YouTube clip can be found here. The part with the burning astronaut is at timestamp 7:30 - 8:00
And here's the alien:
Any of this look familiar?