Results 91 to 100 of about 84,390 (224)

Atmospheric Chemistry of Venus-like Exoplanets

, 2010
We use thermodynamic calculations to model atmospheric chemistry on terrestrial exoplanets that are hot enough for chemical equilibira between the atmosphere and lithosphere, as on Venus. The results of our calculations place constraints on abundances of
Bruce Fegley, Charbonneau, Clampin, de Bergh, Fegley, Fegley, Fegley, Grillmair, Jackson, Kaltenegger, Laura Schaefer, Levine, Schaefer, Seiff, Swain, Swain, Swain, Tian, Yung   +18 more
core   +1 more source

Hubble Space Telescope proper motions of Large Magellanic Cloud star clusters

Astronomy & Astrophysics
In this paper, we explore the kinematic properties of a sample of 19 young (
Niederhofer F., Cullinane L., Massari D., Bastian N., Bellini A., Aguado-Agelet F., Cassisi S., Erkal D., Libralato M., Kacharov N., Cabrera-Ziri I., Ceccarelli E., Cioni M.-R. L., Dresbach F., Häberle M., Martocchia S., Saracino S.   +16 more
doaj   +1 more source

A Snapshot Survey of Nearby Supernovae with the Hubble Space Telescope

The Astrophysical Journal
Over recent decades, robotic (or highly automated) searches for supernovae (SNe) have discovered several thousand events, many of them in quite nearby galaxies (distances < 30 Mpc).
Raphael Baer-Way, Asia DeGraw, WeiKang Zheng, Schuyler D. Van Dyk, Alexei V. Filippenko, Ori D. Fox, Thomas G. Brink, Patrick L. Kelly, Nathan Smith, Sergiy S. Vasylyev, Thomas de Jaeger, Keto Zhang, Samantha Stegman, Timothy Ross, Sameen Yunus   +14 more
doaj   +1 more source

Hubble Space Telescope meteoroid-debris protection analysis [PDF]

A system level failure could occur if the Hubble Space Telescope's (ST) capability to operate as a facility on-orbit is critically reduced or when a significant reduction in the quality of science data is registered.
Horn, J., Maldonado, J.
core   +1 more source

Zonal and Regional Jupiter Brightness Trends from the Hubble Outer Planet Atmospheres Legacy Program

The Planetary Science Journal
The Hubble Outer Planet Atmospheres Legacy program began in 2014 and has observed Jupiter yearly from 2015 to 2024. Using high spatial resolution imaging from the Hubble Wide Field Camera 3, brightness trends were investigated focusing on the unique UV ...
Amy A. Simon, Michael H. Wong
doaj   +1 more source

Hubble Space Telescope observations of Mars [PDF]

Hubble Space Telescope (HST) afforded the possibility of resolving features as small as 100 km on the Martian surface even when it is at the far point of its orbit. Therefore it is ideally suited for monitoring seasonal changes on the red planet.
Clancy, Todd, James, Philip B., Kahn, Ralph, Lee, Steve, Martin, Leonard, Singer, Robert, Zurek, Richard   +6 more
core   +1 more source

Hubble Space Telescope Observations of 3200 Phaethon At Closest Approach

, 2018
We present Hubble Space Telescope observations of the active asteroid (and Geminid stream parent) 3200 Phaethon when at its closest approach to Earth (separation 0.07 AU) in 2017 December.
Agarwal, Jessica, Jewitt, David, Li, Jing, Mutchler, Max   +3 more
core   +1 more source

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

Spike: Artificial intelligence scheduling for Hubble space telescope [PDF]

Efficient utilization of spacecraft resources is essential, but the accompanying scheduling problems are often computationally intractable and are difficult to approximate because of the presence of numerous interacting constraints.
Jackson, Robert, Johnston, Mark, Miller, Glenn, Sponsler, Jeff, Vick, Shon   +4 more
core   +1 more source

Eyes on the Universe: The Legacy of the Hubble Space Telescope and Looking to the Future with the James Webb Space Telescope [PDF]

, 2011
Over the past 20 years the Hubble Space Telescope has revolutionized our understanding of the Universe. Most recently, the complete refurbishment of Hubble in 2009 has given new life to the telescope and the new science instruments have already produced ...
Straughn, Amber
core   +2 more sources