Expert Voices

The inflationary epoch that caused our universe to rapidly expand in its earliest moments may be connected to the modern era of dark energy.

For over 70 years, astronomers have been scanning for radio or optical signals from other civilizations in the search for extraterrestrial intelligence, called SETI.

We can end the current fossil fuel war, by providing abundant resources and clean energy from the moon to Earth, and by moving our toxic industries away from our unique and precious biosphere.

Some scholars predict a future in which single states pursue various levels of dominance, while others foresee a scenario in which commercial entities bring nations together.

The Great Red Spot is like the grandfather of Jupiter's storms. It has been roaming for many, many years — but recently we’ve seen it get smaller.

Is time travel really possible in our universe, or is it just science fiction?

The modern-day space race has led to thousands of satellites scattered through Earth's outer orbits that could push dark skies to extinction.

Does time exist? Developments in physics suggest the non-existence of time is an open possibility, and one that we should take seriously.

Next-generation hypersonic missiles that Russia, China and the U.S. are developing do pose a significant threat to national and global security.

When these plumes first reach the surface, giant volcanic eruptions occur — the kind that contributed to the extinction of the dinosaurs 65.5 million years ago.

If the measurement is correct, it is yet another strong signal that there are missing pieces to the physics puzzle of how the universe works.

The Babylonians may have first started applying mathematics to scientific study nearly 3,000 years ago to discover the pattern underlying eclipses, nearly 3,000 years ago.

Over the decades, the Big Bang theory has taken on some pretty heavy challengers. Let's explore those alternatives and why they didn't work.

Over the past few months, Promin Aerospace has proven its concept of a unique self-burning rocket, an idea based on autophagic, or "self-devouring," technology.

Did the graviton, the quantum mechanical force carrier of gravity, flood the cosmos with dark matter before normal matter even had a chance to get started?

In new research, we have spotted a hot, Jupiter-like gas giant in the process of forming around a star about 500 light-years from Earth.

Private space stations are coming.

It may be possible to build a real, traversable wormhole, but only if our universe has extra dimensions, a team of physicists has found.

Space-based solar power is one of the technologies to feature in the government's Net Zero Innovation Portfolio.

New miniaturized instruments will help detect pollutant gas sources, from power plants to volcanoes.