Long-range RNA-RNA interactions
circularize the dengue virus genome.
Not surprisingly, almost all hot Jupiters (Jupiter-mass planets orbiting their host stars 5 to 10 times closer than Mercury orbits the Sun) have extremely low-eccentricities because tidal interactions with their nearby host stars will
circularize their orbits over long timescales.
The disk would also tend to
circularize their orbits, keep the orbital planes well aligned, and help prevent the planets from locking one another into resonances.
Once a spacecraft is circling Earth, instead of firing an engine at apogee to
circularize the orbit high over the equator, a comparably long burn is made at perigee to elongate the orbit out to the Moon's gravitational influence.
Tidal forces raised by a planet so close to its star should
circularize its orbit in a few hundred million years, as has happened with the close orbiters seen up to now.
Interactions with KBOs eventually
circularize and stabilize the orbits of Uranus and Neptune.
This result, combined with radial-velocity data of the host stars, shows that both planets have almost perfectly circular orbits, in line with theoretical models showing that tidal interactions with the star will quickly
circularize the orbit of a hot Jupiter.
Astronomers had expected friction to
circularize the paths of newborn planets in disks of gas and dust.
MCO will use aerobraking as well as rockets to reduce its speed and
circularize its path.
In order to
circularize its flight path, MGS would have had to carry double the propellant.
Tidal effects should
circularize the orbit of a massive planet that's so close to its star; the energy loss that occurs when tides are raised tends to make eccentric orbits round.
Project managers initially estimated they'd need $80 million and a staff of 200 to
circularize Magellan's orbit and complete two 243-day cycles of gravity mapping.
Complete hybridization aligns the two ends of the probe together on the target DNA and
circularizes the probe by a thermostable ligase.
