"Expansion" around the vacuum equation of state - sudden future singularities and asymptotic behavior
"Expansion" around the vacuum: how far can we go from Lambda?
"Explosive Events" at High Temperatures Observed in XUV from Skylab
"Extended-Solar-Cycle" Activity During the Current Solar Minimum
"Extremely Low Mass: The Circumstellar Envelope of a Potential Proto-Brown Dwarf
"False Moon" image.
"Fast" and "Slow" Density Waves in Spiral Galaxies.
"Fast" and "Slow" Density Waves in Spiral Galaxies.
"Faster Than Light" Photons in Dilaton Black Hole Spacetimes
"Faster-than-Light" Pulse Propagation in the Interstellar Medium and Evidence for Birefringence
"Fe II problem" in active galactic nuclei.
"Finding" the "missing" solar ultraviolet opacity.
"Fine" Structure of Hydrogen Lines in SN 1987A: A Signature of Inhomogeneous and Asymmetric Distribution of ΩNi.
"Fireflies Flashing in Unison": Percival Lowell, Edward Morse and the Birth of Planetology
"First Light" Approaches for VLT MELIPAL
"First Light" for NTT
"First light" från VLT/UT1.
"Flare stars in the Orion Nebula Region" by Haro & Chavira (1969). Overview from Tonanzintla plates to the X-ray Space missions
"Flexible Path” and Future Astronomical Missions
"Following the Water" on Mars: Where Is It, How Much Is There, and How Can We Access It?