It has been shown that they might be observationally equivalent.

The scientists said many points were unclear, but that the idea could be observationally tested soon.

These predictions have not yet been tested either observationally or experimentally.

Several other theories of massive star formation remain to be tested observationally.

Observationally therefore, virtual materials can be said not to exist without a natural physical substrate.

If confirmed, it would represent the first opportunity to study the early stages of planet formation observationally.

This method has not proven to be observationally sound and is viewed as generally insubstantial.

We were able to corroborate such claims observationally.

Tantalum-180m is the only currently known yrast isomer to be observationally stable.

Tegmark claims that the hypothesis has no free parameters and is not observationally ruled out.

Full abstraction: Two programs have the same denotations precisely when they are observationally equivalent.

Indeed, the Big Bang itself is in much better shape experimentally and observationally than was ever thought possible.

Various implications have been pointed out from time to time, but basically the work is observationally driven."

These phenomena have been documented observationally, experimentally, and theoretically.

The first observationally confirmed binary - Kepler-16b - is a close binary.

Observationally, it is typified by shell lesions on the scutes.

An observationally based estimate of the climate sensitivity.

We hope to address that observationally."

Indeed, Newton was fully aware of this stated that all inertial frames are observationally equivalent to each other.

Of these, 80 have at least one observationally stable isotope and four only have radioactive isotopes.

The analytic (A) component must be observationally uninformative.

The researchers obtained this observationally challenging data using the Hubble Space Telescope.

Three observationally stable isobars exist for 124.

The separation is not absolute and the populations overlap observationally, but the distinction suggests two different classes of progenitors.

Supernova types are observationally distinguished by the presence or absence of spectral lines, with hydrogen being the most important diagnostic.