Cosmic curveball: Distant system challenges planet-formation theory

An international team of astronomers has discovered a distant planetary system that challenges long-standing theories of how ...
IEEE

Sliding Mode Control Strategy of Spinning Electrodynamic Tether Formation During Its Spin-Up Process

Abstract: This article mainly studies the spin-up control of a spinning electrodynamic tether formation (SEDTF) consisting of three linearly distributed nanosatellites connected by two tethers. The ...

Moon still SHRINKING as scientists discover over 1,000 clues on lunar surface as Nasa faces dangerous ‘moonquakes’

THE Moon’s “skin” is cracking as Earth’s lunar pal SHRINKS, scientists say. Rather than being a dead rock whizzing around Earth, our neighbouring moon is still active – ...

Scientists discover recent tectonic activity on the moon

Scientists have produced the first global map and analysis of small mare ridges (SMRs) on the moon, a characteristic geological feature of tectonic activity. Published in The Planetary Science Journal ...
IEEE

DMPC Formation Control via Memory-Based Double Random Processes for UAVs With Communication Delay and Packe Dropout Under Multi-Round Formation Missions

Abstract: This paper investigates a distributed model predictive control formation method for unmanned aerial vehicles (UAVs) to cope with potential communication delay (CD) and packet dropout (PD) in ...
News Medical

Study reveals hidden bacterial role in the formation of most kidney stones

In an unexpected finding, a UCLA-led team has discovered that bacteria are present inside the most common type of kidney stone, revealing a previously unrecognized component involved in their ...