Results 91 to 100 of about 14,057 (229)

New Estimates of Nitrogen Fixation on Early Earth

Life
Fixed nitrogen species generated by the early Earth’s atmosphere are thought to be critical to the emergence of life and the sustenance of early metabolisms.
Madeline Christensen, Danica Adams, Michael L. Wong, Patrick Dunn, Yuk L. Yung   +4 more
doaj   +1 more source

Hubble Space Telescope (HST): Emergency support

, 1991
The Hubble Space Telescope (HST) is a national facility that consists of a 2.4-m aperture Ritchey-Chretien cassegrain telescope weighing approximately 9525 kg with various energy detectors designed for the observation of IR, visible, and UV wavelengths ...
Repass, J., Wojtalik, F.
core  

JWST Observations Reject Unrecognized Crowding of Cepheid Photometry as an Explanation for the Hubble Tension at 8σ Confidence

The Astrophysical Journal Letters
We present high-definition observations with the James Webb Space Telescope (JWST) of >1000 Cepheids in a geometric anchor of the distance ladder, NGC 4258, and in five hosts of eight Type Ia supernovae, a far greater sample than previous studies with ...
Adam G. Riess, Gagandeep S. Anand, Wenlong Yuan, Stefano Casertano, Andrew Dolphin, Lucas M. Macri, Louise Breuval, Dan Scolnic, Marshall Perrin, Richard I. Anderson   +9 more
doaj   +1 more source

Hubble Space Telescope

, 2022
THE NORTH DAKOTA SPACE GRANT CONSORTIUM COLLECTION NASA initiated the National Space Grant College and Fellowship Program, also known as Space Grant, in 1989.
NASA/JPL-Caltech
core  

From Galileo to Hubble

This tutorial from the Space Telescope Science Institute covers the development of telescopes from Galileo to the Hubble Space Telescope, using images, animations, and text. Students must answer questions as they progress through the lesson.

core  

STS-61 Hubble Space Telescope Servicing Mission 1993

, 1993
The STS-61 - Hubble Space Telescope Servicing Mission Press ...

core  

The Hubble Space Telescope [PDF]

Europhysics News, 1991
openaire   +1 more source

Measuring Tracers of Planet Formation in the Atmosphere of WASP-77A b: Substellar O/H and C/H Ratios, with a Stellar C/O Ratio and a Potentially Superstellar Ti/H Ratio

The Astrophysical Journal Letters
We present a comprehensive atmospheric retrieval study of the hot Jupiter WASP-77A b using eclipse observations from the Hubble Space Telescope (HST) and JWST.
Billy Edwards, Quentin Changeat
doaj   +1 more source

Hubble Space Telescope arrives

Eos, Transactions American Geophysical Union, 1989
After a secret transcontinental flight, NASA's Hubble Space Telescope has arrived at the Kennedy Space Center at Cape Canaveral, Fla., where it will be tested in preparation for a March 26, 1990, launch aboard the space shuttle Discovery.The telescope was gingerly transferred from a Lockheed plant in California, where it was assembled, to Florida on an
openaire   +1 more source

Hubble Space Telescope

This web site includes news, lessons, activities, and multimedia on the hubble telescope and the work performed by it and its team of scientists. The site includes a large archive of images taken by the telescope, general astronomy materials for the ...

core