In fact, there were no heavy elements present at all.

Heavy elements need very high temperature and pressure to form.

However, it contained more heavy elements than might have been expected.

The heavy element market showed no sudden changes over the last few weeks.

The supernova is the only way heavy elements can be made.

This is the first time, however, that variable stars with so few heavy elements were found.

"Should heavy elements not have sunk to form a core?"

It is twice as enriched with heavy elements than the Sun.

Without the heavy elements generated in stars, Earth and everything on it, including people, would not exist.

A number of heavy elements, unseen in the natural world, were first created with this machine.

Both of these techniques work best for heavier elements such as metals.

Many helium-4 on Earth is produced from alpha decay of heavy elements.

It is the heaviest element yet seen in the gas between the stars.

I've never seen such high concentrations of heavy elements in a star."

The two stars have less than half the abundance of heavy elements as the Sun and are approximately a billion years older.

All heavy elements would in any case be affected.

His work explained the production of all heavier elements, starting from hydrogen.

He hadn't bothered to bring a counter; there were virtually no heavy elements here.

Down here, the heavier elements are sufficiently concentrated to allow this.

Even though the heavy elements will still be a very small component of the star, they have a marked effect on its evolution.

Iodine is one of the heaviest elements needed by living things.

How were heavy elements forged in the explosions of massive stars?

It is the heaviest element known to be used by any living organism.

That is, the evolutionary tracks change with changes in the abundance of heavy elements.

Progressively heavier elements are created during the evolution of a star.