Sentence examples for first observational from inspiring English sources

During its 1986 apparition, Halley's Comet became the first comet to be observed in detail by spacecraft, providing the first observational data on the structure of a comet nucleus and the mechanism of coma and tail formation.

Thanks to the observation of this event, we now have our first observational rate estimate, and it's about ten times larger than we expected.

To begin with, it represents the first observational evidence that black-hole pairs exist.

It is now 40 years since that first observational proof was beamed back to Earth.

Aiuppa, A. et al. First observational evidence for the CO2-driven origin of Stromboli's major explosions.

PTF 11kx is the first observational evidence that Type 1a supernovae can occur in these systems.

The first observational signature of magnetic helicity in the solar atmosphere (sunspot whirls) was discovered 77 years ago.

This was the first observational evidence for the existence of Sagittarius A*, the black hole around which our entire galaxy spins.

Firstly, to our knowledge, this is the first observational study to explore the relationship between metformin exposure and dengue severity in adults.

We conducted the first observational study of a case series of naturopathic consultations of adults who presented with self-reported depression or anxiety.

For Hall, the initial breakthrough only came in 2002 when she gained access to nearby Bradford social services child protection team, for her first observational documentary, Edge of The City.