Our planet has been asteroid-smashed, melted and eroded, enough that most of its original armor has been long buried. Except ...

The ancient history of Earth has always been hard to read. Most of the planet’s earliest crust has been lost, buried, or melted by geologic processes over billions of years.

The European Space Agency said Wednesday that scientists have discovered what might be only the third known interstellar ...

The price of gold has increased approximately 4,750% since 1935 when President Franklin D. Roosevelt raised the value of gold to $35 per ounce. This is compared to today’s gold prices (June 2020) that ...

Tropospheric scintillation on Earth-space paths greatly increases at low elevation angles and/or higher carrier frequencies, may impair low margin systems, and can interfere with the power control ...

Thick continental crust as is observed beneath the Himalayas was not imaged beneath either the modern or ancient mountain belts in Canada. Small crustal ‘roots’ are noted in several places, but "We ...

The transient field-frequency domain of magnetic dipole in a two-layered conducting Earth has been studied. It is obtained as a summation of waveguide modes plus contributions from branch cuts in the ...