Ker Than

Elon Musk has tussled with the New York Times and some balky spacecraft thrusters in the past few weeks.

SpaceX and Tesla occasionally share test facilities, but the cooperation goes deeper than that.

Like the famed Face on Mars, "trees" spotted near the planet's north pole are just optical illusions.

Neither aging GPS satellites nor a weak GPS signal was responsible for an elderly couple getting stranded in the woods, the Air Force says.

New research challenges the idea that the asteroid impact responsible for the dinosaurs' demise sparked wildfires worldwide.

Its existence would satisfy the long-held hopes and hypothesis for a "Planet X" envisioned by scientists and sci-fi buffs alike.

Earth-like rocky planets might be orbiting a star in the Pleiades.

The universe might contain less normal and dark matter than previously thought, and be up to 20 percent lighter.

Scientists have linked ultrahigh energy cosmic rays to active galactic nuclei.

All that heat swells the planets up to 50 times Jupiter's size.

A star called 55 Cancri supports a family of five known planets – the most planets discovered so far around a star besides our own.

Invisible magnetic field lines twisted like long ropes of DNA help stars spiral into life.

Balloon observatories are a nice compromise between space- and ground-based telescopes.

Two scientists claim their modified theory of gravity makes dark matter unnecessary.

An unusual cold spot in our galaxy could be explained by a cosmic defect in the fabric of space-time.

The findings are evidence of more "moonlets," scientists say.

A stellar black hole more than one and a half times more massive than theory predicts has astronomers puzzled.

Apophis is likely made up of a stony mineral that is rare on Earth.

If not for ancient gravitational interactions with these planets, our moon's orbit might be closer to circular.

And it's twice as luminous as the previous record holder.

Plume jets on Enceladus erupt from cracks on the surface.

A nearby supermassive black hole is churning out glass, sapphire, and rubies.

New Horizons is providing new insight about Jupiter's magnetosphere.

Next-generation telescopes are poised to make discoveries in several scientific fields.